Consider the following statements: Statement-I: Thickness of the troposphere at the equator is much greater…

Consider the following statements: Statement-I: Thickness of the troposphere at the equator is much greater as compared to 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?
  1. Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
  2. Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
  3. Statement-I is correct, but Statement-II is incorrect
  4. Statement-I is incorrect, but Statement-II is correct

Solution

Troposphere is about 16-18 km thick at the equator and only 8-9 km at the poles (Statement-I correct). The reason is that strong convectional currents at the equator transport heat to greater heights (Statement-II correctly explains Statement-I).

Asked in: UPSC Prelims 2024

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