Climate and Weather MCQs with Answers and Explanations

Question #241

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What is the name of the phenomenon where a tornado forms over water?

A. Fire whirl

B. Dust devil

C. Waterspout

D. Tornado

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Correct Answer: Option C

Explanation:
A waterspout is a tornado that forms over water, often weaker than land-based tornadoes, but can be dangerous to ships and coastal areas.

This question belongs to: Geography GK Climate and Weather

Question #242

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What is the name of the phenomenon where there is a small, rotating column of air over land, not associated with a thunderstorm?

A. Waterspout

B. Fire whirl

C. Tornado

D. Dust devil

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Correct Answer: Option D

Explanation:
A dust devil is a small, rotating column of air that forms on hot, dry days over land, caused by intense surface heating and not associated with thunderstorms.

This question belongs to: Geography GK Climate and Weather

Question #243

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What is the name of the phenomenon where there is a rotating column of air associated with a wildfire?

A. Tornado

B. Fire whirl

C. Dust devil

D. Waterspout

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Correct Answer: Option B

Explanation:
A fire whirl, also known as a fire tornado or fire devil, is a rotating column of air associated with a wildfire, created by intense heat and rising air.

This question belongs to: Geography GK Climate and Weather

Question #244

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Which of the following is a major factor in the formation of a fire whirl?

A. High pressure

B. Strong wind shear

C. Intense heat from a fire

D. Subsidence

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Correct Answer: Option C

Explanation:
Fire whirls form from the intense heat of a wildfire, which creates a rotating column of air due to the rapid rise of hot air, often exacerbated by wind shear.

This question belongs to: Geography GK Climate and Weather

Question #245

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

A. Anemometer

B. Thermometer

C. Hygrometer

D. Barometer

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Correct Answer: Option D

Explanation:
A barometer is an instrument used to measure atmospheric pressure. Anemometer measures wind speed, hygrometer measures humidity, and thermometer measures temperature.

This question belongs to: Geography GK Climate and Weather

Question #246

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Which of the following instruments is used to measure wind speed?

A. Barometer

B. Anemometer

C. Rain gauge

D. Hygrometer

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Correct Answer: Option B

Explanation:
An anemometer is used to measure wind speed. It typically consists of rotating cups or a propeller that spins faster with stronger winds.

This question belongs to: Geography GK Climate and Weather

Question #247

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Which of the following instruments is used to measure relative humidity?

A. Hygrometer

B. Barometer

C. Anemometer

D. Thermometer

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Correct Answer: Option A

Explanation:
A hygrometer is used to measure relative humidity, which is the amount of moisture in the air compared to the maximum amount it can hold at a given temperature.

This question belongs to: Geography GK Climate and Weather

Question #248

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Which of the following instruments is used to measure rainfall?

A. Rain gauge

B. Hygrometer

C. Barometer

D. Anemometer

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Correct Answer: Option A

Explanation:
A rain gauge is a meteorological instrument used to measure the amount of liquid precipitation over a set period of time.

This question belongs to: Geography GK Climate and Weather

Question #249

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What is the term for the amount of water vapor present in the air?

A. Absolute humidity

B. Relative humidity

C. Specific humidity

D. Dew point

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Correct Answer: Option A

Explanation:
Absolute humidity is the total mass of water vapor present in a given volume of air. Relative humidity is the ratio of actual water vapor to the maximum capacity. Specific humidity is the ratio of water vapor to total air mass. Dew point is the temperature at which air becomes saturated.

This question belongs to: Geography GK Climate and Weather

Question #250

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What is the term for the ratio of the actual water vapor in the air to the maximum amount it could hold at that temperature?

A. Absolute humidity

B. Specific humidity

C. Relative humidity

D. Mixing ratio

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Correct Answer: Option C

Explanation:
Relative humidity is the ratio (expressed as a percentage) of the actual water vapor content to the saturation water vapor content at a given temperature. It indicates how close the air is to being saturated.

This question belongs to: Geography GK Climate and Weather

Question #251

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The temperature at which air becomes saturated and condensation begins is known as:

A. Dew point temperature

B. Wet-bulb temperature

C. Critical temperature

D. Dry-bulb temperature

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Correct Answer: Option A

Explanation:
The dew point is the temperature to which air must be cooled at constant pressure to become saturated with respect to water. When the air temperature cools to the dew point, condensation (fog, clouds, or dew) begins.

This question belongs to: Geography GK Climate and Weather

Question #252

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The wet-bulb temperature is always _____ the dry-bulb temperature when relative humidity is less than 100%.

A. Not related to

B. Greater than

C. Less than

D. Equal to

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Correct Answer: Option C

Explanation:
The wet-bulb temperature is always less than or equal to the dry-bulb temperature. The difference between them is used to determine relative humidity. At 100% relative humidity, they are equal.

This question belongs to: Geography GK Climate and Weather

Question #253

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Which of the following is a low cloud type?

A. Altocumulus

B. Cirrus

C. Stratus

D. Cirrostratus

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Correct Answer: Option C

Explanation:
Stratus clouds are low-level clouds (below 2,000 meters) that form flat, uniform layers and often produce drizzle or light rain. Cirrus and Cirrostratus are high clouds, while Altocumulus is a middle cloud.

This question belongs to: Geography GK Climate and Weather

Question #254

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Which of the following is a high cloud type?

A. Cirrus

B. Stratus

C. Cumulus

D. Nimbostratus

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Correct Answer: Option A

Explanation:
Cirrus clouds are high-level clouds (above 6,000 meters) composed of ice crystals, appearing as thin, wispy streaks. They are often associated with fair weather but can indicate approaching changes.

This question belongs to: Geography GK Climate and Weather

Question #255

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Which of the following cloud types produces rain?

A. Cirrus

B. Stratus

C. Cumulonimbus

D. Altostratus

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Correct Answer: Option C

Explanation:
Cumulonimbus clouds are thunderstorm clouds that produce heavy rain, lightning, thunder, hail, and sometimes tornadoes. They are towering, dense clouds with strong vertical development.

This question belongs to: Geography GK Climate and Weather

Question #256

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Which of the following is a middle cloud type?

A. Altocumulus

B. Cirrus

C. Stratus

D. Cumulus

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Correct Answer: Option A

Explanation:
Altocumulus is a middle-level cloud (between 2,000 and 6,000 meters) that appears as white or gray patches of rounded masses. It is often associated with fair weather but can indicate approaching storms.

This question belongs to: Geography GK Climate and Weather

Question #257

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What is the primary difference between fog and clouds?

A. There is no difference

B. Clouds are at the ground

C. Fog is at the ground

D. Fog is precipitation

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Correct Answer: Option C

Explanation:
The primary difference between fog and clouds is altitude. Fog is essentially a cloud that is in contact with the ground or at the Earth's surface, while clouds are above the surface.

This question belongs to: Geography GK Climate and Weather

Question #258

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What is the name of the large-scale atmospheric circulation cell over the Arctic region?

A. Hadley cell

B. Ferrel cell

C. Polar cell

D. Walker cell

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Correct Answer: Option C

Explanation:
The Polar cell is the large-scale atmospheric circulation that occurs in the polar regions. Cold, dense air sinks at the poles and flows equatorward, rising again at about 60° latitude.

This question belongs to: Geography GK Climate and Weather

Question #259

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The Hadley cell and Ferrel cell are separated by which pressure belt?

A. Subpolar low

B. Subtropical high

C. Polar high

D. Equatorial low

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Correct Answer: Option B

Explanation:
The Hadley cell and Ferrel cell are separated by the subtropical high-pressure belt, which is located around 30° latitude in both hemispheres. Here, air sinks and diverges toward the equator and the poles.

This question belongs to: Geography GK Climate and Weather

Question #260

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The Ferrel cell and Polar cell are separated by which pressure belt?

A. Subtropical high

B. Subpolar low

C. Polar high

D. Equatorial low

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Correct Answer: Option B

Explanation:
The Ferrel cell and Polar cell are separated by the subpolar low-pressure belt, located around 60° latitude in both hemispheres, where warm and cold air masses converge.

This question belongs to: Geography GK Climate and Weather

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