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 convection currents.
Which one of the following is correct in respect of the above statements?
(a). Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
(b). Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
(c). Statement-I is correct, but Statement-II is incorrect
(d). Statement-I is incorrect, but Statement-II is correct
Explanation:
The troposphere is indeed thicker at the equator due to higher temperatures causing more expansion.
Intense solar heating at the equator leads to strong convection currents which transport heat upwards.
The strong convection currents caused by intense solar heating at the equator are the primary reason for the increased thickness of the troposphere compared to the poles.
Therefore, Statement II explains Statement I.
So, the correct answer is (a).
