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What is the boundary between two air masses called?
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Answer:Front
Explanation:
A front is the boundary between two air masses with different temperature, humidity, and density characteristics. This boundary can lead to significant weather changes as the two air masses interact and mix. The collision of warm and cold air masses at a front can result in the formation of clouds, precipitation, and other weather phenomena.
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2.
What is a seven-letter word meaning "dry weather, especially when so long continued as to cause vegetation to wither"?
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Answer:Drought
Explanation:
A seven-letter word that describes dry weather, particularly when it persists for an extended period and causes plants to wither, is "drought."
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3.
What is a seven-letter word meaning "movement of weathered material from gravity"?
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Answer:Erosion
Explanation:
Erosion is a seven-letter word that refers to the movement of weathered material from gravity. This process involves the removal and transportation of soil, rock, or sediment by natural forces such as water, wind, or ice. Erosion plays a significant role in shaping the Earth's surface over time by wearing down mountains, carving out valleys, and depositing sediment in new locations.
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4.
What kind of scientist studies weather and climate?
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Answer:Meteorologist
Explanation:
Meteorologists are scientists who specialize in studying the Earth's atmosphere, weather patterns, and climate. They use a combination of scientific principles, data analysis, and technology to forecast weather conditions, understand climate trends, and provide valuable information to help society prepare for and respond to weather-related events. By closely monitoring atmospheric conditions and studying the interactions between the atmosphere and other Earth systems, meteorologists play a crucial role in advancing our understanding of weather and climate phenomena.
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5.
The definition of "historical record and description of average daily and in seasonal weather events" best fits which science term?
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Answer:Climate
Explanation:
Climate refers to the long-term patterns and trends in weather conditions in a particular region. It involves recording and describing the average daily and seasonal weather events over a period of time. This definition aligns with the concept of climate, as it focuses on the historical record and description of weather patterns rather than short-term fluctuations.
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6.
"Weather radar that measures direction and speed of a moving object" best fits which science term?
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Answer:Doppler
Explanation:
The term "Doppler" is best fitting for a weather radar that measures the direction and speed of a moving object because the Doppler effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. In the case of weather radar, the Doppler effect is used to detect the movement of precipitation particles in the atmosphere, allowing meteorologists to track the direction and speed of the storm.
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7.
Which of the following describes a period of abnormally dry weather for a specific area?
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Answer:Drought
Explanation:
A drought is a prolonged period of abnormally low rainfall, resulting in a water shortage that can have negative impacts on agriculture, water supply, and the environment. During a drought, there is a lack of precipitation which can lead to crop failure, water restrictions, and increased risk of wildfires.
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8.
The definition of "a period of abnormally warm weather in mid to late autumn" best fits which science term?
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Answer:Indian Summer
Explanation:
Indian Summer is a term used to describe a period of unseasonably warm weather that occurs in mid to late autumn. This term originated in the United States and Canada and is commonly used to refer to a period of warm, dry, and calm weather that occurs after the first frost of the season. The term "Indian Summer" is often associated with a time of year when Native American tribes would hunt and gather food before the onset of winter.
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9.
The definition of "subjective term for warm and excessively humid weather" best fits which science term?
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Answer:Muggy
Explanation:
The term "muggy" is a subjective term used to describe warm and excessively humid weather. This term is commonly used in everyday language to convey the uncomfortable feeling of high humidity levels in the air. In the context of science, "muggy" accurately describes conditions of high humidity and warmth, making it the most suitable term for this definition.
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10.
Which of these is a warm spell of weather when ice and snow melt?
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Answer:Thaw
Explanation:
A thaw is a term used to describe a warm spell of weather during which ice and snow melt. This process occurs when temperatures rise above freezing, causing the frozen precipitation to transition into liquid form. Thaws are common during the transition from winter to spring, helping to melt snow and ice accumulation.
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11.
What instrument indicates wind direction?
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Answer:Weather Vane
Explanation:
A weather vane is a device that indicates the direction from which the wind is blowing. It typically consists of a rotating arrow or figure mounted on a stationary base, allowing it to point in the direction of the wind. This instrument is commonly used to determine wind direction, which is important for various activities such as sailing, aviation, and meteorology.
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12.
The science term "weather vane" is best defined as which of these?
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Answer:Instrument To Show Wind Direction
Explanation:
A weather vane is a tool used to show the direction of the wind. It typically consists of a rotating arrow or figure mounted on a fixed vertical rod. As the wind blows, the vane rotates and points in the direction from which the wind is coming. This helps people determine the wind direction, which is important for activities such as sailing, farming, and weather forecasting.
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13.
According to tradition, what insect in the town of Vermilion predicts the winter weather?
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Answer:Woolly Bear Caterpillar
Explanation:
The Woolly Bear Caterpillar is believed to predict winter weather in the town of Vermilion according to tradition. This may be due to the caterpillar's appearance changing based on weather conditions, with the width of its brown and black bands being thought to indicate the severity of the upcoming winter. This folklore has been passed down through generations, leading to the caterpillar being closely observed as a natural weather forecaster in the town.
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14.
"No Place On Earth Has Better Weather" has been which company's ad slogan?
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Answer:The Weather Channel
Explanation:
The ad slogan "No Place On Earth Has Better Weather" belongs to The Weather Channel. This slogan emphasizes the channel's reputation for providing accurate and reliable weather forecasts to its viewers. By claiming to have the best weather information, The Weather Channel positions itself as a trustworthy source for weather updates and forecasts, attracting more viewers to tune in for their weather-related needs.
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15.
What is the average weather in an area over a period of time called?
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Answer:Climate
Explanation:
Climate refers to the average weather conditions in a specific area over a long period of time, typically 30 years. It encompasses factors such as temperature, humidity, precipitation, wind patterns, and more. Climate helps us understand the long-term trends and patterns in weather in a particular region, allowing us to predict future weather conditions and plan accordingly.
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16.
If a French weatherman warns it will be "frais" out, what should you wear?
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Answer:A Winter Coat
Explanation:
In French, the word "frais" translates to "cool" or "chilly," indicating that the weather will be cold. Therefore, wearing a winter coat would be appropriate to stay warm in these conditions.
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17.
What scientist would use a weather balloon and a barometer?
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Answer:Meteorologist
Explanation:
A meteorologist would use a weather balloon and a barometer to gather data on atmospheric conditions such as temperature, pressure, and humidity at different altitudes in the Earth's atmosphere. By analyzing this data, meteorologists can make weather forecasts and study weather patterns to better understand and predict changes in the weather.
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18.
A physicist concerned with the natural phenomena of weather is known as what?
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Answer:A Meteorologist
Explanation:
A physicist concerned with the natural phenomena of weather is known as a meteorologist because meteorology is the scientific study of the atmosphere, particularly in relation to weather and climate. Meteorologists study the processes and patterns of the atmosphere to forecast weather conditions and understand climate trends.
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19.
Because of the severe weather in 2008, China's government became concerned with what issue?
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Answer:Environmental Protection
Explanation:
The severe weather in 2008 likely caused significant environmental damage, prompting China's government to become concerned with the issue of environmental protection. This event may have highlighted the importance of taking measures to protect the environment and prevent further damage from extreme weather events in the future.
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20.
Which kind of scientist reports the weather on the news?
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Answer:Meteorologist
Explanation:
Meteorologists are scientists who study the atmosphere and weather patterns. They use various tools and technologies to collect data and analyze it in order to predict and report on the weather. Meteorologists are often seen reporting the weather on the news, providing valuable information to the public about upcoming weather conditions.
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21.
What "stream" steers the movement of weather systems?
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Answer:Jet Stream
Explanation:
The jet stream is a fast-flowing, narrow air current found in the upper atmosphere that steers the movement of weather systems. It is formed by the temperature difference between hot and cold air masses and plays a crucial role in influencing the direction and intensity of storms, as well as determining the weather patterns in different regions. The strong winds of the jet stream can push weather systems along their path, affecting the development and movement of storms across the globe.
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22.
In terms of weather, a "shower" involves what type of precipitation?
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Answer:Rain
Explanation:
A "shower" in terms of weather typically refers to a brief period of rain that is usually light to moderate in intensity. This type of precipitation is often localized and can occur suddenly before clearing up shortly after. Showers are different from steady rainfall, which is more prolonged and consistent in nature.
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23.
A "gustnado" is a gust from what?
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Answer:A Tornado
Explanation:
A "gustnado" is a type of tornado that forms along the gust front of a severe thunderstorm. It is not a full-fledged tornado but rather a short-lived, ground-based circulation that can cause damage. These gustnadoes are typically weaker than traditional tornadoes but can still pose a threat to people and property in their path.
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24.
What basic element makes up a cloud?
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Answer:Water
Explanation:
Clouds are made up of tiny water droplets or ice crystals that have condensed from water vapor in the atmosphere. As warm air rises, it cools and reaches its dew point, causing the water vapor to condense into visible clouds. These droplets can combine to form larger droplets, eventually becoming heavy enough to fall as precipitation. Therefore, the basic element that makes up a cloud is water in its various forms.
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25.
What kind of gas is Co2?
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Answer:Carbon Dioxide
Explanation:
Carbon Dioxide is a colorless, odorless gas composed of one carbon atom bonded to two oxygen atoms. It is a naturally occurring compound that is produced through various processes such as combustion, respiration, and decomposition. Carbon Dioxide is known for its role in the Earth's carbon cycle and its contribution to the greenhouse effect, making it a significant gas in terms of climate change and global warming.
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26.
Inside what would you find lava, ash and gas?
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Answer:Volcano
Explanation:
Volcanoes are geological formations that typically contain lava, ash, and gas within their chambers. When a volcano erupts, these materials are expelled onto the surface, creating volcanic eruptions. Lava is molten rock that flows out of the volcano, ash is the fine particles of rock and glass that are ejected into the air, and gas, such as sulfur dioxide and carbon dioxide, is released during volcanic activity. These components are all characteristic of the internal workings of a volcano.
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27.
A glacier is a large piece of what?
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Answer:Ice
Explanation:
Glaciers are large pieces of ice that form over time as snow accumulates and compresses into dense, thick ice masses. These ice masses move slowly downhill due to gravity, shaping the landscape and contributing to the flow of rivers and streams. Glaciers play a crucial role in shaping Earth's geography and have a significant impact on the environment and climate.
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28.
What climate term is the opposite of humid?
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Answer:Arid
Explanation:
Arid is the opposite of humid because arid refers to dry, lacking moisture or humidity in the air. In contrast, humid describes an environment with high levels of moisture or water vapor in the air. Therefore, arid and humid are antonyms when describing climate conditions.
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29.
What might you find on the grass after a cool summer night?
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Answer:Dew
Explanation:
After a cool summer night, the temperature drops, causing the moisture in the air to condense and form tiny water droplets on surfaces like grass. This phenomenon is known as dew, and it is commonly found on grass in the early morning hours after a cool night. Dew forms when the temperature of the surface drops below the dew point temperature, causing the water vapor in the air to condense into liquid water droplets.
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30.
A "monsoon" is a kind of what?
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Answer:Wind
Explanation:
A monsoon is a seasonal prevailing wind in the region of South and Southeast Asia, blowing from the southwest between May and September and bringing heavy rains. It is characterized by its distinctive pattern of reversal of direction between summer and winter months, making it a type of wind.
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31.
What geographic circle is at 0 degrees latitude?
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Answer:Equator
Explanation:
The geographic circle at 0 degrees latitude is the Equator, which is an imaginary line that divides the Earth into the Northern Hemisphere and the Southern Hemisphere. It is the midpoint between the North Pole and the South Pole, and marks the widest circumference of the Earth.
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32.
A clear sky contains very few what?
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Answer:Clouds
Explanation:
A clear sky contains very few clouds because clouds are made up of condensed water vapor and other particles that obstruct the view of the sky. When there are very few or no clouds present in the sky, it is considered clear and allows for a full view of the atmosphere above.
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33.
What arc is created by refraction and light?
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Answer:Rainbow
Explanation:
When light passes through water droplets in the atmosphere, it is refracted and dispersed into its component colors, creating a rainbow. The different colors are produced due to the varying wavelengths of light being refracted at slightly different angles. This phenomenon results in the formation of an arc of colors in the sky, known as a rainbow.
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34.
Where does hail form?
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Answer:Clouds
Explanation:
Hail forms in clouds when supercooled water droplets freeze onto condensation nuclei, such as dust or ice particles, and are then carried up and down in the cloud by strong updrafts and downdrafts. As the hailstone continues to grow by colliding with other supercooled water droplets, it eventually becomes too heavy for the updrafts to support and falls to the ground as hail.
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35.
Al Gore made a film about what climate issue?
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Answer:Global Warming
Explanation:
Al Gore made a film about the climate issue of global warming, highlighting the impacts of rising temperatures, melting ice caps, and extreme weather events on the planet. The documentary, titled "An Inconvenient Truth," aimed to raise awareness about the urgent need for action to address this environmental crisis and reduce greenhouse gas emissions to mitigate the effects of climate change.
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36.
In weather, "mean" means what?
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Answer:Average
Explanation:
In weather, "mean" refers to the average value of a particular weather variable over a certain period of time. This term is commonly used in meteorology to describe the typical or expected value of parameters such as temperature, precipitation, or wind speed. By calculating the mean, meteorologists can better understand and communicate the overall weather conditions for a given location or time frame.
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37.
What storm produces lightning?
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Answer:Thunderstorm
Explanation:
Thunderstorms are the type of storm that produces lightning. Lightning is a natural electrical discharge that occurs during a thunderstorm due to the buildup of positive and negative charges within clouds and between clouds and the ground. Thunderstorms are characterized by heavy rain, strong winds, thunder, and lightning, making them the primary source of lightning activity.
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38.
What storm is the opposite of an anticyclone?
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Answer:A Cyclone
Explanation:
A cyclone is the opposite of an anticyclone because while an anticyclone is a high-pressure system with air moving outward and clockwise in the Northern Hemisphere, a cyclone is a low-pressure system with air moving inward and counterclockwise in the Northern Hemisphere. This difference in air flow and pressure systems makes them opposites in terms of meteorological phenomena.
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39.
What is in the sky if it is overcast?
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Answer:Clouds
Explanation:
When the sky is overcast, it means that it is covered with clouds. Overcast conditions occur when the sky is completely or mostly covered by clouds, blocking out the sunlight and creating a gray, dull appearance. This is why the correct answer to the question is clouds, as they are the primary reason for the sky being overcast.
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40.
What is hail made of?
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Answer:Ice
Explanation:
Hail is made of ice because it forms within strong thunderstorm clouds where temperatures are below freezing. Water droplets in the cloud freeze into ice particles, which are then carried up and down in the storm multiple times, accumulating more ice and growing in size until they become too heavy to remain aloft and fall to the ground as hailstones.
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41.
Cumulus and stratus are types of what?
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Answer:Clouds
Explanation:
Cumulus and stratus are both types of clouds. Cumulus clouds are fluffy and white, often indicating fair weather, while stratus clouds are layered and can bring overcast skies and precipitation. Both types of clouds play a role in the Earth's weather patterns and are important in meteorology for predicting conditions.
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42.
A sandstorm would probably occur where?
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Answer:Desert
Explanation:
Sandstorms are most likely to occur in deserts due to the dry and arid conditions present in these regions. The lack of vegetation and loose sand particles make it easier for strong winds to pick up and carry sand, creating the turbulent conditions characteristic of a sandstorm. Deserts are known for their extreme weather patterns, including high winds, which contribute to the formation of sandstorms.
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43.
A sudden trembling of the earth's crust is called what?
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Answer:Earthquake
Explanation:
An earthquake is the sudden shaking of the Earth's surface caused by the movement of tectonic plates beneath the Earth's crust. This movement releases energy in the form of seismic waves, which can result in the ground shaking and potentially causing damage to buildings and infrastructure. Earthquakes can vary in intensity and are measured on the Richter scale.
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44.
What kind of precipitation is drizzle?
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Answer:Rain
Explanation:
Drizzle is a type of precipitation characterized by very light rain falling in fine drops. It is considered a form of rain, but differs in intensity and size of drops compared to heavier rainfall.
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45.
What is a large body of snow sliding down a mountain called?
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Answer:Avalanche
Explanation:
An avalanche is a large body of snow that rapidly slides down a mountain slope. This natural disaster can be triggered by various factors such as snowfall, temperature changes, or human activity. Avalanches can be extremely dangerous and destructive, posing a significant threat to anyone in their path.
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46.
What is the boiling point of water as measured on the Fahrenheit scale?
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Answer:212 Degrees
Explanation:
Water boils at 212 degrees Fahrenheit because this is the temperature at which water transitions from a liquid to a gas phase. This specific temperature is a defining characteristic of water's behavior under standard atmospheric pressure conditions.
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47.
What season has the warmest weather in the U.S.?
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Answer:Summer
Explanation:
Summer is the season with the warmest weather in the U.S. because during this time, the Earth's axis is tilted towards the sun, causing longer days and more direct sunlight. This increased exposure to sunlight leads to higher temperatures across the country, making summer the hottest season of the year. Additionally, the warm weather during summer is also influenced by factors such as high pressure systems and warm air masses moving across the U.S. continent.
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48.
What is the typical color of snow?
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Answer:White
Explanation:
Snow is typically white in color because it is made up of ice crystals that reflect and scatter sunlight. This scattering of light results in the appearance of white to our eyes. Additionally, snow appears white because it contains air and ice crystals, which both have a high reflective index, further contributing to its white color.
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49.
What is the weather phenomenon known as a "tsunami"?
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Answer:A Wave
Explanation:
A tsunami is a specific type of wave caused by underwater earthquakes, volcanic eruptions, or landslides. Unlike regular ocean waves, tsunamis have much longer wavelengths and can travel across entire ocean basins at high speeds. When a tsunami reaches shallow waters near the coast, it can grow in height and cause devastating flooding and destruction.
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50.
What word is generally used to describe visible air pollution?
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Answer:Smog
Explanation:
Smog is the term commonly used to describe visible air pollution caused by a mixture of smoke and fog. It is a type of air pollution that is made up of particulate matter, ground-level ozone, and other harmful pollutants that can be seen as a haze or fog in the air. Smog is often associated with urban areas and can have negative effects on human health and the environment.
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51.
In a "drought", what is absent in terms of weather?
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Answer:Rain
Explanation:
During a drought, the absence of rain is the defining characteristic of the weather. A drought is a prolonged period of abnormally low precipitation, resulting in a shortage of water supply. The lack of rain during a drought leads to dry conditions, water scarcity, and negative impacts on agriculture, ecosystems, and communities that depend on water resources for various purposes.
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52.
Earthquakes sometimes cause "tidal" what?
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Answer:Waves
Explanation:
Earthquakes sometimes cause "tidal" waves. Tidal waves, also known as tsunamis, are large ocean waves usually caused by underwater earthquakes or volcanic eruptions. These waves can travel long distances across the ocean and can cause significant destruction when they reach coastal areas.
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53.
In weather terms, what turns to water in a "spring thaw"?
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Answer:Ice
Explanation:
During a "spring thaw", the warmer temperatures cause the ice to melt and turn into water. This process is common during the transition from winter to spring, when the frozen ice begins to thaw and transform back into its liquid state.
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54.
What kind of gas is central in terms of the effect global warming?
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Answer:Greenhouse
Explanation:
Greenhouse gases are central in terms of the effect on global warming because they trap heat in the Earth's atmosphere, causing the planet's temperature to rise. This leads to climate change, melting ice caps, rising sea levels, and other environmental impacts. The most common greenhouse gases include carbon dioxide, methane, and water vapor. These gases are released through human activities such as burning fossil fuels, deforestation, and industrial processes, contributing to the intensification of global warming.
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55.
What is the solid form of water?
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Answer:Ice
Explanation:
Ice is the solid form of water due to its molecular structure. When water cools down to a temperature below 0 degrees Celsius, the hydrogen and oxygen atoms arrange themselves into a hexagonal lattice structure, forming solid ice. This arrangement causes the molecules to be more spread out compared to the liquid form of water, resulting in a decrease in density and the formation of a solid state.
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56.
What instrument measures altitude?
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Answer:Altimeter
Explanation:
An altimeter is an instrument specifically designed to measure altitude, which is the height of an object or point in relation to a fixed level, such as sea level. This device uses air pressure to determine the altitude of an aircraft, mountain, or any other object above the earth's surface. By measuring the atmospheric pressure, an altimeter can provide an accurate reading of the altitude at a given location.
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57.
What was the name of the August 2005 hurricane that damaged New Orleans?
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Answer:Katrina
Explanation:
Hurricane Katrina was the devastating storm that hit New Orleans in August 2005, causing widespread destruction and loss of life. The hurricane overwhelmed the city's levee system, leading to catastrophic flooding and leaving thousands of residents stranded. The aftermath of Hurricane Katrina led to a national conversation about disaster preparedness, emergency response, and the impact of climate change on extreme weather events.
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58.
In weather terms, what is the opposite of heat?
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Answer:Cold
Explanation:
The opposite of heat in weather terms is cold. Heat refers to high temperatures, while cold refers to low temperatures. In weather terminology, these terms are often used to describe the level of warmth or chilliness in the atmosphere.
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59.
What term describes the overflowing of rivers or streams?
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Answer:Flood
Explanation:
Flood is the term used to describe the overflowing of rivers or streams when the water level exceeds its normal capacity and spills over onto the surrounding land. This natural disaster can cause widespread damage to property, infrastructure, and pose a threat to human life. Floods are often caused by heavy rainfall, snowmelt, or a combination of factors that lead to an excess of water in a river or stream.
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60.
In what season does January fall in Oklahoma?
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Answer:Winter
Explanation:
January falls in the winter season in Oklahoma because it is the first month of the year and typically experiences cold temperatures, occasional snowfall, and shorter days. Winter in Oklahoma usually lasts from December to February, making January a part of the winter season in the state.
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61.
How cold does it need to be outside before it can snow?
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Answer:32 Degrees Fahrenheit
Explanation:
Snow forms when the temperature is at or below freezing (32 degrees Fahrenheit). This is because snowflakes are formed when water vapor in the air freezes into ice crystals. When the temperature is above freezing, the snowflakes will melt and turn into rain instead. Therefore, it needs to be 32 degrees Fahrenheit or colder for snow to fall.
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62.
What line is at 0 degrees latitude?
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Answer:Equator
Explanation:
The line at 0 degrees latitude is known as the Equator, which is an imaginary line that divides the Earth into the Northern Hemisphere and the Southern Hemisphere. It is the longest line of latitude on Earth and is located halfway between the North Pole and the South Pole. The Equator is significant because it marks the point where the sun is directly overhead at the equinoxes, resulting in equal day and night lengths for most of the world.
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63.
What occurs when the earth is between the sun and moon?
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Answer:Lunar Eclipse
Explanation:
When the earth is positioned between the sun and the moon, a lunar eclipse occurs. During a lunar eclipse, the earth blocks the sunlight from reaching the moon, causing the earth's shadow to fall on the moon. This phenomenon can only happen during a full moon when the sun, earth, and moon are aligned in a straight line. The moon may appear to turn a reddish hue during a total lunar eclipse due to the earth's atmosphere bending sunlight towards the moon.
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64.
Abnormally warm weather in autumn is called what?
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Answer:Indian Summer
Explanation:
Indian Summer is a term used to describe a period of unseasonably warm weather that occurs in autumn. This weather phenomenon is characterized by a prolonged period of sunny and clear days with above-average temperatures, usually following a period of cooler weather. The term "Indian Summer" is believed to have originated in the United States and Canada and is often associated with a nostalgic feeling of summer lingering into the fall season.
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65.
What term describes warm and excessively humid weather?
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Answer:Muggy
Explanation:
Muggy is the term used to describe warm and excessively humid weather. This term is commonly used to convey the uncomfortable feeling of high humidity in the air, often making it difficult to breathe and causing sweat to linger on the skin. Muggy weather is typically associated with a sticky and oppressive atmosphere that can be unpleasant for many individuals.
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66.
Where would you take cover from a tornado?
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Answer:Basement
Explanation:
During a tornado, the safest place to take cover is in a basement. Basements provide a sturdy and underground shelter that can protect individuals from the strong winds and debris associated with tornadoes. Additionally, being below ground level reduces the risk of being hit by flying objects or collapsing structures, making basements the ideal location to seek refuge during a tornado.
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67.
Who issues severe weather advisories in the U.S.?
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Answer:National Weather Service
Explanation:
The National Weather Service is responsible for issuing severe weather advisories in the U.S. This agency is tasked with monitoring weather conditions across the country and providing alerts and warnings to the public in order to ensure their safety and preparedness in the event of severe weather events. By issuing these advisories, the National Weather Service helps to save lives and protect property from the potential dangers associated with severe weather phenomena.
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68.
Mount St. Helens erupted in what U.S. state?
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Answer:Washington
Explanation:
Mount St. Helens is located in the state of Washington, where it famously erupted in 1980. The volcano's eruption caused widespread destruction and loss of life, making it one of the most significant volcanic events in U.S. history. Washington is known for its active volcanoes, with Mount St. Helens being one of the most well-known due to its devastating eruption.
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69.
Hot, hazy weather mixed with pollution leads to what?
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Answer:Smog Alert
Explanation:
Hot, hazy weather mixed with pollution can lead to the formation of smog, which is a type of air pollution that can be harmful to human health. When pollutants from sources like vehicles and factories react with sunlight and heat, they can create a thick layer of smog that hangs over cities, causing respiratory issues and other health problems. A smog alert is typically issued by authorities to warn people about the poor air quality and advise them to take precautions to protect themselves.
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70.
Which is heavier, cold air or warm air?
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Answer:Cold
Explanation:
Cold air is heavier than warm air because cold air is denser than warm air. When air cools, its molecules become closer together, increasing its density and making it heavier. This is why cold air tends to sink while warm air rises.
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71.
About 100 lightning bolts strike the earth how often?
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Answer:Every Second
Explanation:
Lightning strikes the earth approximately 100 times per second, making it a common natural phenomenon that occurs frequently. This high frequency of lightning strikes is due to the constant electrical activity happening within storm clouds and the earth's atmosphere, resulting in the discharge of electrical energy in the form of lightning bolts.
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72.
What is the driest U.S. state?
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Answer:Nevada
Explanation:
Nevada is considered the driest U.S. state because it has the lowest average annual precipitation compared to other states. The majority of Nevada is covered by desert, particularly the Mojave Desert, which receives very little rainfall throughout the year. This lack of precipitation contributes to the arid conditions and low humidity levels in the state, making it the driest in the country.
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73.
In February 1865, what did not occur?
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Answer:Full Moon
Explanation:
In February 1865, a Full Moon did not occur because the lunar cycle does not always align perfectly with the calendar month. The occurrence of a Full Moon is determined by the moon's orbit around the Earth, which can vary in length and timing, resulting in Full Moons occurring at different times each month.
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74.
The U.S. uses tons of what to melt roadway ice?
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Answer:Salt
Explanation:
Salt is used in the U.S. to melt roadway ice because it lowers the freezing point of water, preventing ice from forming on the road surface. When salt is spread on icy roads, it helps to break down the ice and snow, making it easier to remove and improving traction for vehicles. This method is cost-effective and widely used across the country during the winter months to ensure safer driving conditions.
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75.
What weather term comes from the Aboriginal "Huracan"?
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Answer:Hurricane
Explanation:
The term "Hurricane" comes from the Aboriginal word "Huracan". The word was first used by the Taino people of the Caribbean to describe a powerful storm. Over time, the word was adopted by Spanish explorers and eventually made its way into the English language to refer to a specific type of tropical cyclone with sustained winds of 74 mph or higher.
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76.
Rubber-soled shoes might protect you from what?
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Answer:Lightning
Explanation:
Rubber-soled shoes might protect you from lightning because rubber is a non-conductive material, meaning it does not allow electricity to pass through it easily. When lightning strikes the ground, rubber-soled shoes can help insulate you from the electric current, reducing the risk of being electrocuted.
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77.
Sudden flooding caused by heavy rain is called what?
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Answer:Flash Flood
Explanation:
Flash floods are rapid flooding events typically caused by heavy rainfall, which can overwhelm drainage systems and cause water levels to rise quickly. This sudden influx of water can lead to dangerous and destructive flooding in a short amount of time, posing a significant threat to life and property. Flash floods are characterized by their swift onset and can occur in urban or rural areas, making them a serious hazard during severe weather events.
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78.
What caused a 118-vehicle wreck on I-94 near Milwaukee?
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Answer:Fog
Explanation:
The 118-vehicle wreck on I-94 near Milwaukee was caused by fog, which significantly reduced visibility on the road, making it difficult for drivers to see other vehicles and react in time to prevent a collision. The fog created hazardous driving conditions, leading to the large-scale accident involving multiple vehicles.
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79.
What phenomenon is often visible at Niagara Falls?
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Answer:Rainbow
Explanation:
The phenomenon of a rainbow is often visible at Niagara Falls due to the mist and sunlight interacting with each other. As the sunlight hits the mist created by the powerful waterfall, it creates a beautiful spectrum of colors in the form of a rainbow. This natural phenomenon is a common sight at Niagara Falls and adds to the already breathtaking scenery of the iconic waterfall.
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80.
What memory aid is used to name a rainbow's colors?
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Answer:ROY G. BIV
Explanation:
ROY G. BIV is a mnemonic device used to remember the colors of the rainbow in order: Red, Orange, Yellow, Green, Blue, Indigo, Violet. Each letter in the acronym corresponds to the first letter of each color, making it easier to recall the sequence of colors in a rainbow. This memory aid is commonly used by students and individuals to help them remember the colors of the rainbow in the correct order.
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81.
Groundhog Day predicts how long what will last?
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Answer:Winter
Explanation:
Groundhog Day predicts how long winter will last based on whether or not the groundhog sees its shadow. If the groundhog sees its shadow, it is said that there will be six more weeks of winter. If it does not see its shadow, then it is believed that winter will end sooner. This tradition is based on folklore and has been practiced for many years as a way to predict the duration of winter.
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82.
What weather condition caused the 1930's Dust Bowl?
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Answer:Drought
Explanation:
The 1930's Dust Bowl was caused by a prolonged period of severe drought in the Great Plains region of the United States. This lack of rainfall resulted in dry soil, which combined with high winds to create massive dust storms that devastated agriculture and ecosystems in the area. The drought conditions led to crop failures, soil erosion, and economic hardship for many farmers and communities in the region.
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83.
What coastal storms typically strike New England?
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Answer:Nor'easters
Explanation:
Nor'easters are a type of coastal storm that commonly strike New England. These storms bring strong winds, heavy rain, and sometimes snow to the region, causing significant impact on the coastal areas. The direction of the winds in a Nor'easter, coming from the northeast, is what gives these storms their name. They are a frequent weather phenomenon in the New England area due to the region's geographic location and can result in coastal flooding, beach erosion, and power outages.
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84.
Which weather element was the first to be measured and logged?
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Answer:Rainfall
Explanation:
Rainfall was the first weather element to be measured and logged because it is one of the most visible and easily quantifiable weather phenomena. The collection of rainfall data dates back thousands of years, with ancient civilizations using various methods to measure and record rainfall for agricultural and forecasting purposes. This early focus on rainfall measurement set the foundation for the development of modern meteorology and weather monitoring techniques.
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85.
How did the cock become a weather vane symbol?
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Answer:Because Of A Papal Enactment
Explanation:
The cock became a weather vane symbol due to a papal enactment, which decreed that every church should have a cock on its spire as a reminder of Peter's denial of Jesus. This tradition originated in the Middle Ages and has since been widely adopted in churches around the world.
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86.
What does a barometer measure?
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Answer:Air Pressure
Explanation:
A barometer measures air pressure, which is the force exerted by the weight of the atmosphere above us. This instrument is used to determine changes in air pressure, which can indicate upcoming weather patterns. By measuring air pressure, meteorologists can forecast changes in weather conditions such as storms, high winds, or clear skies.
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87.
"Bringing Weather To Life" has been used as an ad slogan by which company?
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Answer:The Weather Channel
Explanation:
The slogan "Bringing Weather To Life" perfectly encapsulates the mission and purpose of The Weather Channel, which is to provide viewers with dynamic and engaging weather updates and forecasts. By using this slogan, the company emphasizes its commitment to making weather information more accessible and engaging for the general public.
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88.
Which of the these can help weather scientists track and predict hurricanes?
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Answer:Airplane Radar
Explanation:
Airplane radar can help weather scientists track and predict hurricanes by providing real-time data on the storm's location, intensity, and movement. This technology allows scientists to gather crucial information about the storm's structure and development, which is essential for accurate forecasting and issuing timely warnings to potentially affected areas. By using airplane radar, scientists can improve their understanding of hurricanes and make more informed decisions to protect lives and property.
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89.
In terms of measuring temperature, "Celsius" is also known as what?
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Answer:Centigrade
Explanation:
Celsius is also known as Centigrade because the temperature scale was originally defined with 0 degrees as the freezing point of water and 100 degrees as the boiling point of water, dividing the scale into 100 equal parts. This makes it a centigrade scale, with "centi" meaning one hundred.
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90.
In evaporation, water turns into what?
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Answer:Vapor
Explanation:
In evaporation, water turns into vapor as the liquid water molecules gain enough energy to escape into the air as gas. This process occurs when water is heated, allowing the molecules to move faster and eventually break free from the liquid state. The vapor then rises into the atmosphere and eventually condenses back into liquid form, completing the water cycle.
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91.
What is a flat upper portion of a cumulonimbus cloud called?
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Answer:Anvil
Explanation:
An anvil is the flat upper portion of a cumulonimbus cloud that spreads out in the shape of an anvil due to strong upper level winds. This distinctive shape is formed when the top of the cloud reaches the tropopause and is then flattened and spread out by the high-altitude winds. The anvil shape is a key characteristic of mature thunderstorms and indicates a strong updraft within the cloud.
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92.
What term is used for the study of climate?
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Answer:Climatology
Explanation:
Climatology is the term used to refer to the study of climate. It involves analyzing long-term weather patterns, trends, and variations in order to better understand and predict climate changes. Climatologists study various factors that influence the climate, such as temperature, precipitation, wind patterns, and atmospheric conditions, in order to gain insights into how the climate system works and how it may be changing over time.
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93.
A gale is a strong what?
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Answer:Wind
Explanation:
A gale is a strong wind characterized by its intensity and force, often reaching speeds of 34 to 40 knots (39 to 46 mph). Gales are typically associated with stormy weather conditions and can cause significant damage due to their powerful gusts.
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94.
What animal lends its name to very hot days in the summer?
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Answer:Dog
Explanation:
The phrase "dog days of summer" refers to the hottest and most sultry days of the season, typically occurring in July and August. This term originates from the ancient belief that the hot weather was caused by the rising of Sirius, also known as the Dog Star, in the sky during this time of year. The association with dogs likely comes from the idea that dogs tend to be lethargic and seek shade during the intense heat of summer.
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95.
What is the opposite of evaporation?
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Answer:Condensation
Explanation:
Condensation is the opposite of evaporation because while evaporation is the process of liquid turning into vapor due to heat, condensation is the process of vapor turning back into liquid when it cools down. Evaporation involves the molecules of a liquid gaining energy and escaping into the air, while condensation involves the molecules losing energy and coming together to form liquid droplets.
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96.
"Red sky in morning, sailors take" what?
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Answer:Warning
Explanation:
The phrase "Red sky in morning, sailors take warning" is a traditional saying that suggests if the sky is red in the morning, it is a sign of an impending storm. This saying is often used by sailors as a way to predict the weather and prepare for potentially dangerous conditions at sea.
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97.
What body of water does "El Nino" primarily effect?
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Answer:Pacific Ocean
Explanation:
El Nino primarily affects the Pacific Ocean due to the warming of sea surface temperatures in the central and eastern tropical Pacific. This phenomenon can lead to changes in weather patterns around the world, such as increased rainfall in certain regions and droughts in others. The Pacific Ocean plays a crucial role in the development and intensity of El Nino events, making it the primary body of water affected by this climate phenomenon.
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98.
All atmospheric water that hits the ground is known as what?
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Answer:Precipitation
Explanation:
Precipitation refers to all forms of water, such as rain, snow, sleet, or hail, that fall from the atmosphere and reach the ground. This term encompasses any water that is condensed from the atmosphere and deposited back on the Earth's surface.
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99.
What is the white trail flowing behind jets in the sky called?
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Answer:Contrail
Explanation:
Contrails are the white trails that form behind jets in the sky when water vapor condenses and freezes around small particles emitted from the aircraft's engines. These trails are formed at high altitudes where the air is cold and moist, creating the ideal conditions for contrail formation. Contrails can vary in length and duration depending on atmospheric conditions, and they are a common sight in the sky when jets are flying at high altitudes.
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100.
What might "bite" you in cold weather?
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Answer:Frost
Explanation:
In cold weather, frost can "bite" you by causing damage to exposed skin or surfaces due to its freezing temperatures. Frost can create slippery conditions on roads and sidewalks, leading to accidents and injuries. Additionally, frost can also damage crops, plants, and infrastructure, impacting agriculture and transportation.