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Which of the following reasons are behind the maximum thickness of the troposphere at the equator?
- The centripetal force due to Earth's rotation is maximum at the Equator.
- High insolation leads to stronger convection currents over the Equator.
- Air is less dense at the Equator.
- The higher gravitational pull on atmospheric gases is at the Poles.
Select the corr1 and 2 onlyect answer using the code given below:
- a)1 and 2 only
- b)1, 2 and 3 only
- c)2, 3 and 4 only
- d)1, 3 and 4 only
Correct answer is option 'C'. Can you explain this answer?
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Which of the following reasons are behind the maximum thickness of the...
Explanation:
The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to an average height of about 12 kilometers. It is characterized by decreasing temperature with increasing altitude. The maximum thickness of the troposphere is observed at the equator due to the following reasons:
1. High insolation leads to stronger convection currents over the Equator:
- Insolation refers to the incoming solar radiation from the Sun.
- At the equator, the Sun is almost directly overhead throughout the year, resulting in high insolation.
- The high insolation leads to intense heating of the Earth's surface at the equator, causing the air to warm up and rise.
- This rising warm air forms convection currents, where air rises at the equator, moves towards the poles, and descends in the subtropical regions.
- The convection currents in the troposphere play a significant role in redistributing heat and moisture around the globe.
- The stronger convection currents over the equator contribute to the maximum thickness of the troposphere in this region.
2. Air is less dense at the Equator:
- As the air near the equator gets heated, it expands and becomes less dense.
- Less dense air tends to occupy a larger volume, leading to the maximum thickness of the troposphere at the equator.
- The expansion of air near the equator also contributes to the formation of rising convection currents, as mentioned earlier.
3. The centripetal force due to Earth's rotation is maximum at the Equator:
- The Earth rotates on its axis, causing a centripetal force acting towards the center.
- The centrifugal force due to rotation is maximum at the equator, counteracting the gravitational force.
- This reduces the effective gravitational pull on atmospheric gases at the equator.
- As a result, the air near the equator is less compressed compared to other latitudes, contributing to the maximum thickness of the troposphere.
4. The higher gravitational pull on atmospheric gases is at the Poles:
- The poles experience a higher gravitational pull due to their proximity to the Earth's center.
- The increased gravitational pull leads to a higher compression of atmospheric gases at the poles.
- This compression results in a thinner troposphere at the poles compared to the equator.
Therefore, the maximum thickness of the troposphere at the equator can be attributed to the combination of high insolation, stronger convection currents, less dense air, and the reduced gravitational pull on atmospheric gases.
The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to an average height of about 12 kilometers. It is characterized by decreasing temperature with increasing altitude. The maximum thickness of the troposphere is observed at the equator due to the following reasons:
1. High insolation leads to stronger convection currents over the Equator:
- Insolation refers to the incoming solar radiation from the Sun.
- At the equator, the Sun is almost directly overhead throughout the year, resulting in high insolation.
- The high insolation leads to intense heating of the Earth's surface at the equator, causing the air to warm up and rise.
- This rising warm air forms convection currents, where air rises at the equator, moves towards the poles, and descends in the subtropical regions.
- The convection currents in the troposphere play a significant role in redistributing heat and moisture around the globe.
- The stronger convection currents over the equator contribute to the maximum thickness of the troposphere in this region.
2. Air is less dense at the Equator:
- As the air near the equator gets heated, it expands and becomes less dense.
- Less dense air tends to occupy a larger volume, leading to the maximum thickness of the troposphere at the equator.
- The expansion of air near the equator also contributes to the formation of rising convection currents, as mentioned earlier.
3. The centripetal force due to Earth's rotation is maximum at the Equator:
- The Earth rotates on its axis, causing a centripetal force acting towards the center.
- The centrifugal force due to rotation is maximum at the equator, counteracting the gravitational force.
- This reduces the effective gravitational pull on atmospheric gases at the equator.
- As a result, the air near the equator is less compressed compared to other latitudes, contributing to the maximum thickness of the troposphere.
4. The higher gravitational pull on atmospheric gases is at the Poles:
- The poles experience a higher gravitational pull due to their proximity to the Earth's center.
- The increased gravitational pull leads to a higher compression of atmospheric gases at the poles.
- This compression results in a thinner troposphere at the poles compared to the equator.
Therefore, the maximum thickness of the troposphere at the equator can be attributed to the combination of high insolation, stronger convection currents, less dense air, and the reduced gravitational pull on atmospheric gases.
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Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?
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Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?.
Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reasons are behind the maximum thickness of the troposphere at the equator? The centripetal force due to Earths rotation is maximum at the Equator. High insolation leads to stronger convection currents over the Equator. Air is less dense at the Equator. The higher gravitational pull on atmospheric gases is at the Poles.Select the corr1 and 2 onlyect answer using the code given below:a)1 and 2 onlyb)1, 2 and 3 onlyc)2, 3 and 4 onlyd)1, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?.
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