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State PCS PYQPrelims 2020

UPPCS · Question 83

Without green house effect, the average temperature of earth surface would be

  1. 0°C
  2. –18°C
  3. 5°C
  4. –20°C
Show answer & explanation

Answer: (B) –18°C

Explanation

Without the natural greenhouse effect, Earth's average surface temperature would be about −18°C instead of about +15°C.