Multiple choice

The presence of O3 in the atmosphere of earth�

  1. Has been responsible for increasing the average global temperature in recent

  2. It advantageous since it supplies O3 for people travelling in jets

  3. Hinders higher rate of photosynthesis

  4. Helps in the checking the penetration of ultra violet rays to earth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stratospheric ozone forms a protective layer that absorbs most of the sun's harmful UV-B and UV-C radiation, preventing DNA damage and protecting living organisms from increased skin cancer and other harmful effects.

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