QQuestion
Which of the following gases does not help in the depletion of the ozone layer?
(a) CFC
(b) NO
(c) CO₂
(d) NO₂
✓Answer
(c) CO₂
Explanation
Carbon dioxide (CO₂) is a greenhouse gas that contributes to global warming, but it does not directly take part in the depletion of the ozone layer.
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