UPSC Prelims 2024 Question on –Thickness of Troposphere at Equator and Poles
Q. Consider the following statements:
Statement I: The thickness of the troposphere at the equator is much greater as compared to the poles. Statement II: At the equator, heat is transported to great heights by strong convectional currents.
Which one of the following is correct in respect of the above statements?
✅ Correct Answer: (a)
Explanation:
Statement I – Correct: The troposphere is thickest at the equator and thinnest at the poles due to higher temperatures and lower air density in equatorial regions.
Statement II – Correct: Intense solar heating at the equator generates strong convectional currents that carry heat to higher altitudes.
Link between the two: These strong convectional currents cause the troposphere to expand vertically at the equator, thereby explaining its greater thickness compared to the poles.
