Air & Wind Quiz

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  • 1/84 Questions

    Thunder and lightning are associated with which type of clouds? 

    • Cirrostratus
    • Cumulonimbus
    • Altostratus
    • Cirrus
    • Stratus
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About This Quiz

Air is a mixture of gaseous substances that make up the atmosphere whereas wind is air in motion. Anemology is the study of winds. It helps one to get knowledge of the winds, its movement and effects. The quiz below will test how much know about winds and help expand your knowledge.

Air & Wind Quiz - Quiz

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  • 2. 

    The Coriolis force occurs because of Earth’s: 

    • Magnetic field

    • Atmosphere

    • Rotation

    • Dense Core

    Correct Answer
    A. Rotation
    Explanation
    The Coriolis force occurs because of Earth's rotation. As the Earth rotates on its axis, objects moving across its surface are subject to a deflecting force known as the Coriolis force. This force causes moving objects, such as air masses or ocean currents, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The Coriolis force plays a crucial role in the formation of weather patterns, ocean currents, and the rotation of hurricanes and cyclones.

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  • 3. 

    Which of the following is the primary control of how much water vapor the air can hold? 

    • Number of particles present

    • Temperature of the air

    • Specific heat of water

    • Amount of dry gases present

    Correct Answer
    A. Temperature of the air
    Explanation
    The primary control of how much water vapor the air can hold is the temperature of the air. As the temperature increases, the air can hold more water vapor. This is because warmer air has more energy, allowing water molecules to move faster and escape into the gas phase. On the other hand, colder air has less energy, causing water vapor to condense into liquid form. Therefore, the temperature of the air directly affects the amount of water vapor it can hold.

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  • 4. 

    Which of the following are sources of cloud condensation nuclei? 

    • Dust storms

    • Volcanic Eruptions

    • Pollen

    • Forest Fires

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the options listed (dust storms, volcanic eruptions, pollen, and forest fires) are sources of cloud condensation nuclei. Cloud condensation nuclei are tiny particles in the atmosphere that water vapor condenses onto to form clouds. Dust storms, volcanic eruptions, pollen, and forest fires all release particles into the air that can act as cloud condensation nuclei. Therefore, all of the options are correct sources of cloud condensation nuclei.

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  • 5. 

    Which of the following instruments is used to measure atmospheric pressure? 

    • Anemometer

    • Barometer

    • Thermograph

    • Tachometer

    • Hygrometer

    Correct Answer
    A. Barometer
    Explanation
    A barometer is used to measure atmospheric pressure. Atmospheric pressure refers to the force exerted by the weight of the air in the atmosphere. A barometer works by measuring the height of a column of mercury or aneroid barometer measures the pressure using a flexible metal chamber. By measuring the atmospheric pressure, a barometer can provide information about weather patterns and changes in atmospheric conditions. Anemometer measures wind speed, thermograph measures temperature, tachometer measures rotation speed, and hygrometer measures humidity levels.

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  • 6. 

     Buys Ballot’s law states that: 

    • In the Northern Hemisphere, low pressure will be on your left if you stand with your back to the wind

    • Winds higher than a few kilometers are called geostrophic

    • Winds at Earth’s surface are frictionless

    • Cyclonic flow must be opposite the direction of Earth’s rotation

    Correct Answer
    A. In the Northern Hemisphere, low pressure will be on your left if you stand with your back to the wind
    Explanation
    Buys Ballot's law states that in the Northern Hemisphere, low pressure will be on your left if you stand with your back to the wind. This means that if you are facing the wind, the low pressure system will be to your left side. This law helps in determining the direction of wind flow and is based on the principle of air moving from high pressure to low pressure areas. By observing the direction of low pressure, one can predict the likely movement of weather systems.

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  • 7. 

    Which one do you like?

    • Option 1

    • Option 2

    • Option 3

    • Option 4

    Correct Answer
    A. Option 1
  • 8. 

    In the Northern Hemisphere, the Coriolis force deflects moving air: 

    • To the right

    • To the left

    • Always toward the north

    • Always toward the south

    • It does not deflect moving air

    Correct Answer
    A. To the right
    Explanation
    The Coriolis force is an apparent force that affects moving objects on the rotating Earth. In the Northern Hemisphere, the Coriolis force deflects moving air to the right. This is due to the rotation of the Earth causing the air to appear to curve to the right as it moves northward. The Coriolis force is responsible for the rotation of weather systems such as hurricanes and the movement of air masses in the atmosphere.

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  • 9. 

     An instrument used to measure wind speed is called a(n): 

    • Anemometer

    • Aneroid Barometer

    • Thermograph

    • Tachometer

    • Hygrometer

    Correct Answer
    A. Anemometer
    Explanation
    An anemometer is a device used to measure wind speed. It typically consists of cups that rotate when wind blows against them, and the rotation is then measured to determine the speed of the wind. This instrument is specifically designed for measuring wind speed and is widely used in weather stations, aviation, and other applications where wind speed information is important. Aneroid barometer measures atmospheric pressure, thermograph measures temperature, tachometer measures rotational speed, and hygrometer measures humidity, so they are not suitable choices for measuring wind speed.

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  • 10. 

    When temperature increases with altitude rather than decreasing, this is called 

    • Conditionally unstable

    • Temperature invasion

    • Orographic lifting

    • Subsidence

    Correct Answer
    A. Temperature invasion
  • 11. 

    Which of the following is NOT a form of intentional weather modification?

    • Cloud seeding

    • Fog Dispersal

    • Frost prevention

    • Hail suppression

    • Urbanization

    Correct Answer
    A. Urbanization
    Explanation
    Urbanization is not a form of intentional weather modification because it refers to the process of population growth and the development of urban areas, such as cities and towns. It involves the construction of buildings, roads, and other infrastructure, but it does not directly manipulate or modify the weather. Cloud seeding, fog dispersal, frost prevention, and hail suppression, on the other hand, are all intentional techniques used to alter or control weather patterns.

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  • 12. 

    On an upper-level weather chart, a ridge indicates: 

    • The direction major weather systems are moving

    • An elongated high pressure area

    • An elongated low pressure area

    • A region of cold, wet weather

    • A constant 18,000 foot elevation

    Correct Answer
    A. An elongated high pressure area
    Explanation
    A ridge on an upper-level weather chart indicates an elongated high pressure area. High pressure areas are associated with sinking air, which leads to stable and clear weather conditions. The elongated shape of the ridge suggests that the high pressure area covers a large geographic area.

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  • 13. 

    Lines of equal pressure are called

    • Isotherms

    • Isohyets

    • Isotachs

    • Isodrosotherms

    • Isobars

    Correct Answer
    A. Isobars
    Explanation
    Lines of equal pressure are called isobars. Isobars are used to represent and visualize atmospheric pressure patterns on weather maps. These lines connect points of equal atmospheric pressure, allowing meteorologists to identify areas of high and low pressure systems and analyze weather patterns. By observing the spacing and distribution of isobars, meteorologists can determine the strength and movement of weather systems, such as fronts and cyclones, which are crucial for weather forecasting and understanding atmospheric dynamics.

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  • 14. 

     When wind consistently blows more often from one direction than any other, this is called a: 

    • Wind vane

    • Wind rose

    • Prevailing wind

    • Trade wind

    • Converging wind

    Correct Answer
    A. Prevailing wind
    Explanation
    A prevailing wind refers to the dominant direction from which the wind blows in a particular area or region. It is the most common or frequent wind direction observed over a long period of time. Prevailing winds are determined by factors such as global atmospheric circulation patterns, local topography, and the Earth's rotation. By understanding prevailing winds, meteorologists and sailors can predict weather patterns and plan navigation routes accordingly.

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  • 15. 

    Which of the following change of state of water absorbs energy? 

    • Evaporation

    • Condensation

    • Freezing

    • Deposition

    • Albedo

    Correct Answer
    A. Evaporation
    Explanation
    Evaporation is the process in which water changes from a liquid state to a gaseous state. During evaporation, energy is absorbed from the surroundings in order to break the intermolecular forces between water molecules and convert them into vapor. This energy is in the form of heat and is required to overcome the attractive forces between water molecules. Therefore, evaporation is the change of state of water that absorbs energy.

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  • 16. 

     The collision-coalescence process occurs when the entire cloud is: 

    • Below Freezing

    • Above Freezing

    • Raining

    • Snowing

    Correct Answer
    A. Above Freezing
    Explanation
    The collision-coalescence process refers to the formation of precipitation in warm clouds. In this process, cloud droplets collide and merge together to form larger droplets. These larger droplets then fall as rain. Since rain is formed through the collision-coalescence process, it implies that the cloud in question must be above freezing temperature, as liquid water cannot exist below freezing. Therefore, the correct answer is "Above Freezing".

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  • 17. 

    On a weather map of air pressure, what can you infer from a closer spacing of isobars? 

    • Nothing can be inferred

    • A steep pressure gradient and light winds

    • A steep pressure gradient and strong winds

    • A week pressure gradient and light winds

    • A weak pressure gradient and strong winds

    Correct Answer
    A. A steep pressure gradient and strong winds
    Explanation
    A closer spacing of isobars on a weather map indicates a steep pressure gradient. This means that there is a significant difference in air pressure over a short distance. The closer the isobars are together, the steeper the pressure gradient is. This steep pressure gradient leads to strong winds, as air moves from areas of high pressure to areas of low pressure. Therefore, a closer spacing of isobars on a weather map suggests a steep pressure gradient and strong winds.

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  • 18. 

    Most of the United States is situated in which zone of prevailing winds? 

    • Doldrums

    • Trade winds

    • Westerlies

    • Northerlies

    • Easterlies

    Correct Answer
    A. Westerlies
    Explanation
    The correct answer is Westerlies. The westerlies are prevailing winds that blow from west to east in the middle latitudes of both the Northern and Southern Hemispheres. In the United States, the westerlies are responsible for the prevailing weather patterns, bringing storms and weather systems from the west.

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  • 19. 

    During a clear, calm day, the relative humidity would tend to ____ from sunrise to early afternoon? 

    • Increase

    • Decrease

    • Remain Constant

    • It is impossible to determine

    Correct Answer
    A. Decrease
    Explanation
    During a clear, calm day, the relative humidity would tend to decrease from sunrise to early afternoon. This is because as the day progresses and the temperature rises, the air can hold more moisture. As a result, the relative humidity, which is the amount of moisture in the air compared to the maximum amount it can hold at a given temperature, decreases.

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  • 20. 

    The stability of an air layer referee to its: 

    • Mass of water vapor

    • Tendency to remain in its original position or to rise

    • Air pressure

    • Temperature

    • Density

    Correct Answer
    A. Tendency to remain in its original position or to rise
    Explanation
    The stability of an air layer refers to its tendency to remain in its original position or to rise. This means that if the air layer is stable, it will resist vertical movement and stay in its current position. On the other hand, if the air layer is unstable, it will have a tendency to rise and mix with the surrounding air. Factors such as mass of water vapor, air pressure, temperature, and density can all affect the stability of the air layer, but the most important factor in determining stability is the tendency of the air layer to remain in its original position or to rise.

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  • 21. 

    Which one do you like?

    • Option 1

    • Option 2

    • Option 3

    • Option 4

    Correct Answer
    A. Option 1
    Explanation
    This question is asking for a personal preference among the given options. The correct answer is Option 1, indicating that the person likes Option 1 the most out of all the options provided.

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  • 22. 

    Clouds are classified and named according to their height and: 

    • Temperature

    • Water Content

    • Cloud Droplet size

    • Form

    • Amount of precipitation reduced

    Correct Answer
    A. Form
    Explanation
    Clouds are classified and named according to their form. The form of a cloud refers to its shape and structure, such as whether it is flat, puffy, or wispy. This classification system helps meteorologists and scientists categorize clouds based on their appearance, which can provide valuable information about weather patterns and atmospheric conditions. By understanding the form of a cloud, meteorologists can make predictions about future weather events and better understand the dynamics of the atmosphere.

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  • 23. 

    You observe a cloud at an altitude of 10,000 feet. This cloud name would have the prefix: 

    • Alto

    • Cirro

    • Strato

    • Medial

    • Nimbo

    Correct Answer
    A. Alto
    Explanation
    The prefix "Alto" is used to describe clouds that are found at middle altitudes, typically between 6,500 and 20,000 feet. Therefore, if you observe a cloud at an altitude of 10,000 feet, it would be classified as an "Alto" cloud.

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  • 24. 

    Which of the following is INCORRECT relative to air circulation? 

    • Anticyclone—High pressure

    • Cyclone—Low pressure

    • Anticyclone—Clockwise circulation in the Southern Hemisphere

    • Cyclone—Counterclockwise circulation in the Northern Hemisphere

    Correct Answer
    A. Anticyclone—Clockwise circulation in the Southern Hemisphere
    Explanation
    In the Southern Hemisphere, the circulation around an anticyclone is actually counterclockwise, not clockwise. Anticyclones are areas of high pressure where the air descends and diverges, creating a clockwise circulation in the Northern Hemisphere and a counterclockwise circulation in the Southern Hemisphere. This is due to the Coriolis effect, which causes the deflection of moving objects, including air, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

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  • 25. 

    Which of the following instruments can be used to measure precipitation?

    • Tipping-bucket gauge

    • Anemometer

    • Barograph

    • Thermometer

    • Bi-metal strip

    Correct Answer
    A. Tipping-bucket gauge
    Explanation
    A tipping-bucket gauge is specifically designed to measure precipitation. It consists of a funnel that collects rainwater and a mechanism with a small bucket that tips when a certain amount of water is collected. Each tip of the bucket is recorded, allowing for accurate measurement of the amount of precipitation. Anemometer measures wind speed, barograph measures atmospheric pressure, thermometer measures temperature, and bi-metal strip is used to measure temperature changes. Therefore, the tipping-bucket gauge is the only instrument listed that is suitable for measuring precipitation.

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  • 26. 

    High air-pressure systems are usually associated with: 

    • Diverting winds at the surface

    • Subsiding air

    • Clear weather

    • All of the above are correct

    • Only a and c are correct

    Correct Answer
    A. All of the above are correct
    Explanation
    High air-pressure systems are usually associated with diverting winds at the surface, subsiding air, and clear weather. When air pressure is high, it creates a downward force, causing the air to sink and compress. This subsiding air leads to stable atmospheric conditions, which in turn result in clear skies and calm weather. Additionally, the sinking air diverts winds at the surface, causing them to flow outwards from the center of the high-pressure system. Therefore, all of the given options (a, b, and c) are correct explanations for high air-pressure systems.

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  • 27. 

     Winds from the ______ were proposed to account for the prevailing westerlies at middle latitudes. 

    • Hadley cell

    • Ferrel cell

    • Polar cell

    • ITCZ

    • Doldrums

    Correct Answer
    A. Ferrel cell
    Explanation
    The correct answer is ferrel cell. The Ferrel cell is a global atmospheric circulation cell located between the Hadley cell and the polar cell. It is responsible for the prevailing westerlies, which are winds that blow from west to east in the middle latitudes. The Ferrel cell is created by the interaction between the Hadley cell and the polar cell, and it helps to redistribute heat and energy in the atmosphere.

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  • 28. 

    When the relative humidity is 100 percent: 

    • The absolute humidity is greater than the relative humidity

    • The air is saturated

    • Evaporation begins

    • The mixing ration is equal to the relative humidity

    • The absolute humidity is equal to the relative humidity

    Correct Answer
    A. The air is saturated
    Explanation
    When the relative humidity is 100 percent, it means that the air is holding the maximum amount of water vapor it can at a given temperature. This indicates that the air is saturated, meaning it cannot hold any more moisture. At this point, evaporation begins to slow down as the air cannot absorb any additional water vapor. Therefore, the correct answer is that the air is saturated.

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  • 29. 

    What is the temperature to which a parcel of air would need to be cooled to reach saturation? 

    • Freezing point

    • Wet-bulb temperature

    • Dew-point temperature

    • Air temperature

    Correct Answer
    A. Dew-point temperature
    Explanation
    The dew-point temperature is the temperature at which air becomes saturated with water vapor and condensation begins to form. When a parcel of air is cooled to its dew-point temperature, it reaches its saturation point and cannot hold any more moisture. This is the temperature at which dew, fog, or clouds may form. Therefore, the correct answer is dew-point temperature.

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  • 30. 

    Which type of fog occurs during nights when skies are clear and relative humidity is high? 

    • Steam fog

    • Advection fog

    • Radiation fog

    • Precipitation fog

    • Upslope fog

    Correct Answer
    A. Radiation fog
    Explanation
    Radiation fog occurs during nights when skies are clear and relative humidity is high. This type of fog forms when the ground cools down rapidly after sunset, causing the air near the surface to cool as well. As the air cools, its moisture condenses and forms fog. Radiation fog is typically localized and can be quite dense, reducing visibility.

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  • 31. 

    With an increase in altitude, air pressure: 

    • Increases at a constant rate

    • Increases at a decreasing rate

    • Decreases at a constant rate

    • Decreases at a decreasing rate

    • Decreases at an increasing rate

    Correct Answer
    A. Decreases at a decreasing rate
    Explanation
    As altitude increases, air pressure decreases. However, the rate at which air pressure decreases also decreases. This means that the decrease in air pressure becomes less steep as altitude increases.

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  • 32. 

    The Intertropical Convergence Zone (ITCZ) is characterized by: 

    • Convergence and uplift of warm surface air

    • Convergence and subsidence of cold surface air

    • Divergence and uplift of warm surface air

    • Divergence and subsidence of cold surface air

    Correct Answer
    A. Convergence and uplift of warm surface air
    Explanation
    The Intertropical Convergence Zone (ITCZ) is characterized by convergence and uplift of warm surface air. This means that warm air from both the Northern and Southern Hemispheres converge at the ITCZ, causing the air to rise and create a zone of low pressure. As the air rises, it cools and condenses, leading to the formation of clouds and precipitation. The ITCZ is typically found near the equator and is associated with heavy rainfall and thunderstorms.

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  • 33. 

    During winter months, monsoon winds over the Indian Ocean: 

    • Flow from land to sea and are dry

    • Flow from land to sea and are wet

    • Flow from sea to land and are dry

    • Flow from sea to land and are wet

    • The direction of airflow is unchanged but precipitation increases.

    Correct Answer
    A. Flow from land to sea and are dry
    Explanation
    During winter months, monsoon winds over the Indian Ocean flow from land to sea and are dry. This is because the landmass cools down faster than the ocean, causing the air above the land to become denser and sink. As a result, the air flows from the land to the sea, creating dry conditions.

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  • 34. 

    Jet Streams: 

    • Have the same intensity throughout the course of a year

    • Do not play a role in the weather of the midlatitudes

    • Have typical speeds around 20 km/h

    • Are powerful belts of wind near the top of the troposphere

    • Are slow moving airstreams in the mesosphere

    Correct Answer
    A. Are powerful belts of wind near the top of the troposphere
    Explanation
    Jet streams are powerful belts of wind that are located near the top of the troposphere. They are fast-moving air currents that flow in a westerly direction in the midlatitudes. Jet streams play a significant role in influencing weather patterns and can have speeds of up to 200 miles per hour (322 km/h). They can affect the movement of weather systems, including storms and fronts. Jet streams are important for aviation as they can either assist or hinder the speed and efficiency of aircraft flying in them.

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  • 35. 

    This word indicates that a cloud is a rain producer: 

    • Lenticular

    • Alto

    • Nimbus

    • Cumulus

    • Cirro

    Correct Answer
    A. Nimbus
    Explanation
    The word "Nimbus" is the correct answer because it is a type of cloud that is known for producing rain. Nimbus clouds are characterized by their dark and dense appearance, indicating that they are filled with moisture and capable of precipitating.

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  • 36. 

    The Southern Oscillation: 

    • Is a cycle of strengthening and reversing trade winds in the equatorial Pacific

    • Another name for a La Niña event

    • Does not have the ability to alter climate and is of little concern

    • Only impacts weather in the United States

    Correct Answer
    A. Is a cycle of strengthening and reversing trade winds in the equatorial Pacific
    Explanation
    The Southern Oscillation refers to a cycle of strengthening and reversing trade winds in the equatorial Pacific. This phenomenon is characterized by changes in atmospheric pressure patterns between the eastern and western Pacific Ocean. The cycle of trade winds has a significant impact on global weather patterns and can lead to the development of El Niño or La Niña events, which in turn can affect climate conditions worldwide. Therefore, the Southern Oscillation is not just a regional concern but has implications for weather and climate on a global scale.

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  • 37. 

    Which of the following best describes supercooled water? 

    • Part liquid and part solid

    • A unique form of ice that only forms in clouds

    • Liquid water at temperatures below 0'C

    • Water with a slightly different chemical nature than ordinary water

    • Produced from dry ice

    Correct Answer
    A. Liquid water at temperatures below 0'C
    Explanation
    Supercooled water refers to liquid water that exists at temperatures below 0°C. This occurs when the water is cooled below its freezing point but remains in a liquid state due to the absence of impurities or disturbances that would initiate the freezing process. Supercooled water is unstable and can freeze instantly upon contact with a solid surface or disturbance, such as a speck of dust or a slight movement.

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  • 38. 

    A warm, dry wind that moves downslope can be called a: 

    • Chinook

    • Mistral

    • Fall wind

    • Haboob

    • Bora

    Correct Answer
    A. Chinook
    Explanation
    A warm, dry wind that moves downslope can be called a Chinook. Chinook winds are typically experienced in the Rocky Mountains and are caused by the movement of air over the mountains, leading to adiabatic warming. These winds can cause a rapid increase in temperature and can melt snow quickly. They are often associated with clear skies and can have a significant impact on local weather conditions.

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  • 39. 

    The Intertropical Convergence Zone (ITCZ): 

    • Is also known as the Horse Latitudes

    • Migrates seasonally with the direct rays of the Sun

    • Is characterized by sinking air from aloft and clear conditions

    • All of these are correct.

    Correct Answer
    A. Migrates seasonally with the direct rays of the Sun
    Explanation
    The correct answer is "Migrates seasonally with the direct rays of the Sun." The Intertropical Convergence Zone (ITCZ) is a belt of low pressure near the equator where trade winds from both hemispheres converge. It is influenced by the direct rays of the Sun, which move northward during the summer in the Northern Hemisphere and southward during the summer in the Southern Hemisphere. This seasonal movement of the Sun causes the ITCZ to shift, resulting in changes in weather patterns and precipitation.

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  • 40. 

    Where are lenticular clouds most likely to form? 

    • Over oceans

    • Along Coastlines

    • To the lee of mountains

    • In desert regions

    • Downwind of lakes

    Correct Answer
    A. To the lee of mountains
    Explanation
    Lenticular clouds are most likely to form to the lee of mountains. When moist air is forced to rise over a mountain range, it cools and condenses, forming clouds. As the air descends on the other side of the mountains, it warms and evaporates the clouds, creating a stable layer of air that can lead to the formation of lenticular clouds. These unique lens-shaped clouds often appear stationary and can be found hovering near the peak of the mountain.

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  • 41. 

    On a 360 degree wind vane dial, winds from the west are associated with: 

    • 0 degrees

    • 90 degrees

    • 180 degrees

    • 270 degrees

    Correct Answer
    A. 270 degrees
    Explanation
    Winds from the west are associated with 270 degrees on a 360-degree wind vane dial. In meteorology, wind direction is measured in degrees clockwise from true north. Since west is located at 270 degrees on a compass, winds coming from the west would be associated with this direction on a wind vane dial.

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  • 42. 

    What country has the largest wind-generating capacity? 

    • China

    • United States

    • Germany

    • Spain

    • India

    Correct Answer
    A. China
    Explanation
    China has the largest wind-generating capacity compared to the other countries listed. This is due to China's significant investment in renewable energy, including wind power. China has been rapidly expanding its wind power infrastructure, installing a large number of wind turbines across the country. As a result, China has surpassed other countries in terms of its wind-generating capacity, making it the leader in this field.

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  • 43. 

    The cloud type that is best described as sheets or layers that cover much or all of the sky is termed: 

    • Cumulus

    • Stratus

    • Cirrocumulus

    • Cirrus

    Correct Answer
    A. Stratus
    Explanation
    Stratus clouds are best described as sheets or layers that cover much or all of the sky. They are low-level clouds that often appear as a uniform grayish layer and can be associated with drizzle or light rain. Cumulus clouds are puffy and have a more vertical development, while cirrocumulus and cirrus clouds are high-level clouds that appear as thin, wispy strands or patches. Therefore, the best choice that matches the description given is stratus.

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  • 44. 

    The dominant surface winds between the subtropics and 60 degrees latitude are the: 

    • Trade winds

    • Horse latitudes

    • Polar easterlies

    • Geostrophic winds

    • Westerlies

    Correct Answer
    A. Westerlies
    Explanation
    The dominant surface winds between the subtropics and 60 degrees latitude are the Westerlies. These winds blow from the west towards the east in both hemispheres. They are caused by the rotation of the Earth and the temperature differences between the equator and the poles. The Westerlies play an important role in weather patterns and help to distribute heat and moisture around the globe. They are also responsible for the movement of storms and weather systems in the mid-latitudes.

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  • 45. 

    The Gulf Stream is the name given to: 

    • The circulation of water in the Gulf of Mexico

    • A current carrying warm water from the equator along the East Coast of the United States

    • A current carrying cold water from the North Pole along the West Coast of the United States

    • A clockwise current in the Gulf of California

    Correct Answer
    A. A current carrying warm water from the equator along the East Coast of the United States
    Explanation
    The Gulf Stream is a powerful warm ocean current that originates in the Gulf of Mexico and carries warm water from the equator along the East Coast of the United States. It is a significant part of the Atlantic Meridional Overturning Circulation (AMOC) system and plays a crucial role in regulating the climate of the surrounding regions. The Gulf Stream has a major impact on weather patterns, marine ecosystems, and even influences the navigation of ships and aircraft.

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  • 46. 

    The wet adiabatic lapse rate is different from the dry adiabatic lapse rate because: 

    • An air parcel expands more rapidly when saturated.

    • Latent heat is released inside an air parcel of rising saturated air.

    • Saturated air is always unstable.

    • Unsaturated air is always unstable.

    Correct Answer
    A. Latent heat is released inside an air parcel of rising saturated air.
    Explanation
    When an air parcel rises and becomes saturated, the water vapor inside it starts to condense, releasing latent heat. This release of latent heat warms the surrounding air, causing the saturated parcel to cool at a slower rate compared to a dry parcel. This slower cooling rate is what differentiates the wet adiabatic lapse rate from the dry adiabatic lapse rate.

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  • 47. 

    In either the Northern or Southern Hemisphere, a cyclonic flow means: 

    • Any clockwise wind flow

    • Any counterclockwise wind flow

    • Circulation around a low pressure center

    • Circulation around a high pressure center

    • Any strong wind

    Correct Answer
    A. Circulation around a low pressure center
    Explanation
    A cyclonic flow refers to the circulation of air around a low-pressure center. In the Northern Hemisphere, the flow is counterclockwise, while in the Southern Hemisphere, it is clockwise. This circulation pattern is caused by the Coriolis effect, which deflects moving air to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The low-pressure center is usually associated with unsettled weather conditions, such as precipitation and storms.

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  • 48. 

    Sea breezes: 

    • Are local winds blowing from the sea during the afternoon in coastal areas

    • Require a surface region of high pressure inland

    • Occur when the temperature at the seashore is higher than that inland

    • Are usually less intense than land breezes

    • All of these are correct.

    Correct Answer
    A. Are local winds blowing from the sea during the afternoon in coastal areas
    Explanation
    Sea breezes are local winds that occur during the afternoon in coastal areas. They are caused by a temperature difference between the seashore and the inland regions, with the temperature at the seashore being higher. These winds require a surface region of high pressure inland. Sea breezes are usually less intense than land breezes. Therefore, all of the given statements are correct.

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  • 49. 

    The Coriolis force is _______ in the upper troposphere because _______. 

    • Enhanced; the pressure gradient is weaker

    • Enhanced; there is less friction

    • Enhanced; there is more friction

    • Decreased; air moves to high latitudes

    • Decreased; there is more friction

    Correct Answer
    A. Enhanced; there is less friction
    Explanation
    In the upper troposphere, the Coriolis force is enhanced because there is less friction. Friction tends to slow down the movement of air, reducing the effect of the Coriolis force. In the absence of significant friction, such as in the upper troposphere, the Coriolis force can exert a stronger influence on the movement of air, leading to enhanced effects.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 15, 2016
    Quiz Created by
    Gracenesseth

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