UPSC PRELIMS · GEOGRAPHY · PHYSICAL GEOGRAPHY
Consider the following statements: 1. Statement-I: The atmosphere is heated more by incoming solar radiation than by terrestrial radiation. 2. Statement-II: Carbon dioxide and other greenhouse gases in the atmosphere are good absorbers of long wave radiation. 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 atmosphere is heated mainly by terrestrial radiation emitted by the Earth rather than directly by incoming solar radiation. Carbon dioxide and other greenhouse gases absorb long-wave terrestrial radiation, making Statement-II correct.
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