UPSC PRELIMS · GEOGRAPHY · PHYSICAL GEOGRAPHY
Consider the following statements: 1. The troposphere is thicker at the equator than at the poles. 2. Strong convection currents are present at the equator. Which one of the following is correct in respect of the above statements?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
The troposphere is thicker near the equator because stronger heating produces stronger convection and greater vertical expansion of the air column. Thus both statements are correct and the second explains the first.
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