If there were no atmosphere, the average temperature on earth surface would be

If there were no atmosphere, the average temperature on earth surface would be
  1. lower
  2. higher
  3. same
  4. \(0^{\circ} \mathrm{C}\).

Solution

This is because the atmosphere contains greenhouse gases like carbon dioxide and water vapor that trap heat from the sun, keeping the planet at a suitable temperature for life. Without the atmosphere, the Earth would lose heat rapidly to space, making it too cold for life to exist. /

Asked in: NEET 2016 (Phase 2)

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