1.
Which of these is a unit of length used in marine navigation?
Correct Answer
A. Nautical Mile
Explanation
The correct answer is Nautical Mile. A nautical mile is a unit of measurement used in marine navigation. It is equal to one minute of latitude and is commonly used to measure distances at sea. Ampere, Joule, and Hectare are not units of length used in marine navigation.
2.
What nearly colorless gas is a form of ozone?
Correct Answer
B. Ozone
Explanation
Ozone is a nearly colorless gas that is a form of oxygen. It is composed of three oxygen atoms bonded together. Ozone is a powerful oxidizing agent and is commonly found in the Earth's atmosphere, particularly in the ozone layer. It is responsible for absorbing most of the Sun's ultraviolet radiation, protecting life on Earth from harmful UV rays. Ozone is also used for various purposes, such as disinfection and air purification.
3.
The definition of "highest instantaneous wind speed observed or recorded" best fits which science term?
Correct Answer
D. Peak Gust
Explanation
The term "peak gust" refers to the highest instantaneous wind speed that has been observed or recorded. This term is commonly used in meteorology to describe the maximum wind speed during a specific time period, such as during a storm or hurricane. It represents the strongest burst of wind that occurs during a particular event and is often measured using anemometers or other wind measuring devices.
4.
The definition of "a wind that blows from one direction more frequently than any other" best fits which science term?
Correct Answer
A. Prevailing Wind
Explanation
A prevailing wind is a wind that blows from one direction more frequently than any other. This term is commonly used in meteorology to describe the dominant wind direction in a particular area. Prevailing winds are important for understanding weather patterns and climate. They can influence temperature, precipitation, and the movement of air masses.
5.
The definition of "a forest which grows in a region of heavy annual precipitation" best fits which science term?
Correct Answer
D. Rain Forest
Explanation
The term "rain forest" best fits the definition of "a forest which grows in a region of heavy annual precipitation." Rain forests are characterized by their high levels of rainfall, typically exceeding 80 inches per year. These forests are found in tropical regions near the equator, where the climate is warm and humid. The abundance of rainfall supports the growth of diverse plant and animal species, making rain forests some of the most biodiverse ecosystems on Earth.
6.
"Short, strong surface water movement that flows seaward from the shore" best fits which term?
Correct Answer
A. Rip Current
Explanation
A rip current is a strong and fast-moving flow of water that moves away from the shore and towards the sea. It is characterized by its short and powerful surface water movement. This term accurately describes the phenomenon mentioned in the question.
7.
The definition of "snow or ice on the ground that has been reduced to a softy watery mixture by rain" best fits which science term?
Correct Answer
D. Slush
Explanation
Slush is the correct answer because it is the term that best fits the definition provided. Slush refers to snow or ice on the ground that has melted and been reduced to a watery mixture by rain. It is a common term used to describe this specific state of snow or ice. Natural Resource, Metamorphosis, and Flat Teeth do not align with the given definition and therefore are not the correct answers.
8.
The definition of "layer of the atmosphere between the troposphere and the mesosphere" best fits which science term?
Correct Answer
D. StratospHere
Explanation
The layer of the atmosphere between the troposphere and the mesosphere is called the stratosphere. This layer is characterized by its stable temperature and the presence of the ozone layer. It is located above the troposphere where weather occurs and below the mesosphere where temperatures decrease with altitude. The stratosphere plays an important role in protecting life on Earth by absorbing harmful ultraviolet radiation from the sun.
9.
The daily appearance of the sun on the eastern horizon is known as what?
Correct Answer
D. Sunrise
Explanation
The daily appearance of the sun on the eastern horizon is known as "sunrise". This is when the sun rises above the horizon and becomes visible in the sky. It marks the beginning of a new day and is a natural phenomenon that occurs every morning.
10.
What is an instrument used for measuring temperatures?
Correct Answer
D. Thermometer
Explanation
A thermometer is an instrument used for measuring temperatures. It consists of a narrow glass tube with a bulb at one end that contains a liquid, usually mercury or alcohol. As the temperature changes, the liquid expands or contracts, causing it to rise or fall in the tube. The temperature is then read from a scale marked on the tube. Thermometers are commonly used in various fields such as weather forecasting, medical diagnosis, and scientific research.
11.
The definition of "the periodic rising and falling of the earth's oceans and atmosphere" best fits which science term?
Correct Answer
C. Tide
Explanation
The correct answer is Tide. A tide refers to the periodic rising and falling of the earth's oceans and atmosphere, which is caused by the gravitational pull of the moon and the sun. This phenomenon occurs twice a day and is responsible for the regular changes in sea levels along coastlines. The other options, Jet Stream, Knot, and Dormancy, do not accurately describe this specific scientific concept.
12.
"A material clear enough not to block the passage of light" best fits which science term?
Correct Answer
B. Transparent
Explanation
The term "transparent" refers to a material that is clear enough to allow the passage of light without blocking it. This means that light can pass through the material easily, making it possible to see objects on the other side. In the context of the given options, DDT is a chemical compound, not a term related to the passage of light. Botanist refers to a scientist who studies plants, and ecosystem refers to a community of living organisms and their environment. Therefore, "transparent" is the best fit for a material that does not block the passage of light.
13.
The definition "tropical cyclone with sustained surface winds are from 39 to 73 mph" best fits which science term?
Correct Answer
D. Tropical Storm
Explanation
A tropical storm is defined as a tropical cyclone with sustained surface winds ranging from 39 to 73 mph. This means that the correct answer for the given definition is "Tropical Storm". A tropical storm is a weather phenomenon characterized by strong winds and heavy rainfall, typically forming over warm ocean waters. It is a lower intensity storm compared to hurricanes or typhoons, but can still cause significant damage and pose a threat to coastal areas.
14.
The definition "tropical cyclone with sustained winds of 74 mph in western North Pacific Ocean" best fits which science term?
Correct Answer
A. TypHoon
Explanation
A typhoon is a specific type of tropical cyclone that occurs in the western North Pacific Ocean. It is characterized by sustained winds of at least 74 mph. Therefore, the definition "tropical cyclone with sustained winds of 74 mph in western North Pacific Ocean" best fits the term typhoon.
15.
The definition "a cloudlike streamer or trail often seen behind aircraft" best describes which science term?
Correct Answer
C. Vapor Trail
Explanation
A vapor trail is a cloudlike streamer or trail often seen behind aircraft. When an aircraft is flying at high altitudes, the hot exhaust gases from its engines mix with the cold air, causing condensation to form. This condensation then freezes into ice crystals, creating a visible trail in the sky. Therefore, the term "vapor trail" accurately describes this phenomenon.