UPSC PYQPrelims 2025

Civil Services Examination · Question 49

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
Show answer & explanation

Answer: (C) I, II and III

Explanation

All three statements correctly describe the greenhouse effect.