Climate and Weather MCQs
Practice Climate and Weather MCQs with answers and detailed explanations covering climate, weather, monsoons, rainfall, temperature, humidity, atmospheric pressure, winds, cyclones, seasons and important climatic phenomena frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.
Question #141
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Which of the following is a characteristic of the thermosphere?
Correct Answer: Option C
Explanation:
The thermosphere is characterized by increasing temperature with altitude due to the absorption of solar radiation, making it the hottest layer.
The thermosphere is characterized by increasing temperature with altitude due to the absorption of solar radiation, making it the hottest layer.
This question belongs to:
Geography GK
Climate and Weather
Question #142
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Which of the following is a characteristic of the exosphere?
Correct Answer: Option C
Explanation:
The exosphere is characterized by increasing temperature with altitude, as the few gas molecules present absorb solar radiation. It is the outermost layer, merging with space.
The exosphere is characterized by increasing temperature with altitude, as the few gas molecules present absorb solar radiation. It is the outermost layer, merging with space.
This question belongs to:
Geography GK
Climate and Weather
Question #143
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What is the name of the phenomenon where the atmosphere traps heat, warming the Earth's surface?
Correct Answer: Option B
Explanation:
The greenhouse effect is the natural process by which certain gases in the atmosphere (greenhouse gases) trap outgoing longwave radiation, warming the Earth's surface and making it habitable.
The greenhouse effect is the natural process by which certain gases in the atmosphere (greenhouse gases) trap outgoing longwave radiation, warming the Earth's surface and making it habitable.
This question belongs to:
Geography GK
Climate and Weather
Question #144
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Which of the following is a major source of methane emissions?
Correct Answer: Option D
Explanation:
Agriculture, particularly livestock (enteric fermentation) and rice paddies, is a major source of methane emissions. Burning fossil fuels and industrial processes release CO2, while deforestation releases CO2 and reduces carbon uptake.
Agriculture, particularly livestock (enteric fermentation) and rice paddies, is a major source of methane emissions. Burning fossil fuels and industrial processes release CO2, while deforestation releases CO2 and reduces carbon uptake.
This question belongs to:
Geography GK
Climate and Weather
Question #145
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Which of the following is a major source of nitrous oxide emissions?
Correct Answer: Option A
Explanation:
Agriculture, especially the use of nitrogen-based fertilizers, is a major source of nitrous oxide emissions. Burning fossil fuels and industrial processes release CO2 and other pollutants.
Agriculture, especially the use of nitrogen-based fertilizers, is a major source of nitrous oxide emissions. Burning fossil fuels and industrial processes release CO2 and other pollutants.
This question belongs to:
Geography GK
Climate and Weather
Question #146
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What is the major cause of the ozone hole?
Correct Answer: Option C
Explanation:
The ozone hole is primarily caused by Chlorofluorocarbons (CFCs) and other ozone-depleting substances, which release chlorine and bromine atoms that catalyze the destruction of ozone in the stratosphere.
The ozone hole is primarily caused by Chlorofluorocarbons (CFCs) and other ozone-depleting substances, which release chlorine and bromine atoms that catalyze the destruction of ozone in the stratosphere.
This question belongs to:
Geography GK
Climate and Weather
Question #147
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The Montreal Protocol is an international treaty to protect the:
Correct Answer: Option D
Explanation:
The Montreal Protocol is an international treaty designed to phase out the production of ozone-depleting substances, such as CFCs, to protect the stratospheric ozone layer.
The Montreal Protocol is an international treaty designed to phase out the production of ozone-depleting substances, such as CFCs, to protect the stratospheric ozone layer.
This question belongs to:
Geography GK
Climate and Weather
Question #148
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Which of the following is NOT a source of particulate matter (PM2.5)?
Correct Answer: Option C
Explanation:
Solar radiation is not a source of particulate matter. Particulate matter (PM2.5 and PM10) is emitted from vehicle exhaust, industrial processes, burning of fossil fuels, construction, and natural sources like dust and smoke.
Solar radiation is not a source of particulate matter. Particulate matter (PM2.5 and PM10) is emitted from vehicle exhaust, industrial processes, burning of fossil fuels, construction, and natural sources like dust and smoke.
This question belongs to:
Geography GK
Climate and Weather
Question #149
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What is the primary cause of acid rain?
Correct Answer: Option D
Explanation:
Acid rain is primarily caused by sulfur dioxide (SO2) and nitrogen oxides (NOx) released from burning fossil fuels, which react with water vapor in the atmosphere to form sulfuric and nitric acids.
Acid rain is primarily caused by sulfur dioxide (SO2) and nitrogen oxides (NOx) released from burning fossil fuels, which react with water vapor in the atmosphere to form sulfuric and nitric acids.
This question belongs to:
Geography GK
Climate and Weather
Question #150
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Which of the following is a characteristic of a subtropical high-pressure belt?
Correct Answer: Option C
Explanation:
Subtropical high-pressure belts are characterized by sinking air (subsidence), which leads to clear skies, dry conditions, and the formation of deserts (e.g., Sahara, Kalahari).
Subtropical high-pressure belts are characterized by sinking air (subsidence), which leads to clear skies, dry conditions, and the formation of deserts (e.g., Sahara, Kalahari).
This question belongs to:
Geography GK
Climate and Weather
Question #151
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Which of the following is a characteristic of a low-pressure system in the Northern Hemisphere?
Correct Answer: Option C
Explanation:
Low-pressure systems in the Northern Hemisphere have counterclockwise wind circulation due to the Coriolis effect. They are associated with rising air, cloud formation, and precipitation.
Low-pressure systems in the Northern Hemisphere have counterclockwise wind circulation due to the Coriolis effect. They are associated with rising air, cloud formation, and precipitation.
This question belongs to:
Geography GK
Climate and Weather
Question #152
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Which of the following is a characteristic of a high-pressure system in the Northern Hemisphere?
Correct Answer: Option A
Explanation:
High-pressure systems in the Northern Hemisphere have clockwise wind circulation. They are associated with sinking air, leading to clear skies and dry weather.
High-pressure systems in the Northern Hemisphere have clockwise wind circulation. They are associated with sinking air, leading to clear skies and dry weather.
This question belongs to:
Geography GK
Climate and Weather
Question #153
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What is the name of the phenomenon where the wind blows parallel to isobars?
Correct Answer: Option D
Explanation:
A geostrophic wind is a theoretical wind that blows parallel to isobars (lines of equal pressure) and results from a balance between the pressure gradient force and the Coriolis force.
A geostrophic wind is a theoretical wind that blows parallel to isobars (lines of equal pressure) and results from a balance between the pressure gradient force and the Coriolis force.
This question belongs to:
Geography GK
Climate and Weather
Question #154
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What is the name of the phenomenon where the wind blows at an angle to isobars due to friction?
Correct Answer: Option B
Explanation:
Surface winds blow at an angle to isobars (towards lower pressure) due to friction with the Earth's surface, which reduces the Coriolis force.
Surface winds blow at an angle to isobars (towards lower pressure) due to friction with the Earth's surface, which reduces the Coriolis force.
This question belongs to:
Geography GK
Climate and Weather
Question #155
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Which of the following is a characteristic of a tornado?
Correct Answer: Option C
Explanation:
A tornado is a violently rotating column of air extending from a thunderstorm to the ground. It is small in scale, lasts for minutes, and forms over land (unlike tropical cyclones).
A tornado is a violently rotating column of air extending from a thunderstorm to the ground. It is small in scale, lasts for minutes, and forms over land (unlike tropical cyclones).
This question belongs to:
Geography GK
Climate and Weather
Question #156
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The Fujita scale is used to measure:
Correct Answer: Option A
Explanation:
The Fujita scale (and the Enhanced Fujita scale) is used to rate the intensity of tornadoes based on the damage they cause. The Saffir-Simpson scale is for hurricanes.
The Fujita scale (and the Enhanced Fujita scale) is used to rate the intensity of tornadoes based on the damage they cause. The Saffir-Simpson scale is for hurricanes.
This question belongs to:
Geography GK
Climate and Weather
Question #157
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What is the name of the phenomenon where air moves from high pressure to low pressure?
Correct Answer: Option B
Explanation:
Wind is the movement of air from areas of high pressure to areas of low pressure due to the pressure gradient force. Convection is vertical movement, advection is horizontal movement, and conduction is heat transfer.
Wind is the movement of air from areas of high pressure to areas of low pressure due to the pressure gradient force. Convection is vertical movement, advection is horizontal movement, and conduction is heat transfer.
This question belongs to:
Geography GK
Climate and Weather
Question #158
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What is the name of the phenomenon where air rises due to heating?
Correct Answer: Option C
Explanation:
Convection is the vertical movement of air caused by heating, where warmer, less dense air rises, and cooler, denser air sinks. This is a key mechanism in weather formation.
Convection is the vertical movement of air caused by heating, where warmer, less dense air rises, and cooler, denser air sinks. This is a key mechanism in weather formation.
This question belongs to:
Geography GK
Climate and Weather
Question #159
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What is the name of the phenomenon where air sinks due to cooling?
Correct Answer: Option A
Explanation:
Subsidence is the downward movement of air, often associated with high-pressure systems and clear weather. It occurs when air cools and becomes denser.
Subsidence is the downward movement of air, often associated with high-pressure systems and clear weather. It occurs when air cools and becomes denser.
This question belongs to:
Geography GK
Climate and Weather
Question #160
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Which of the following is NOT a factor that affects wind speed?
Correct Answer: Option C
Explanation:
Humidity does not directly affect wind speed. Wind speed is influenced by the pressure gradient (difference in pressure), the Coriolis effect (deflection), and friction (with the Earth's surface).
Humidity does not directly affect wind speed. Wind speed is influenced by the pressure gradient (difference in pressure), the Coriolis effect (deflection), and friction (with the Earth's surface).
This question belongs to:
Geography GK
Climate and Weather
