Which one of the following depletes ozone layer ?

eSaral Updated on:
Question:

Which one of the following depletes ozone layer?

  1. NO and freons

  2. $\mathrm{SO}_{2}$

  3. $\mathrm{CO}$

  4. $\mathrm{CO}_{2}$

Correct Option: 1

Solution:

Solution not required

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