Consider the following statements: I. Without the atmosphere, temperature would be well below freezing point…

Consider the following statements: I. Without the atmosphere, temperature would be well below freezing point everywhere on the Earth's surface. II. Heat absorbed and trapped by the atmosphere maintains our planet's average temperature. III. Atmosphere's gases, like carbon dioxide, are particularly good at absorbing and trapping radiation. Which of the statements given above are correct?
  1. I and III only
  2. I and II only
  3. I, II and III
  4. II and III only

Solution

All three statements correctly describe the natural greenhouse effect that keeps Earth's average surface temperature liveable.

Asked in: UPSC Prelims 2025

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