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Who enhances the degradation of ozone?

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in Biology – Class 12 by (271k points)
Who enhances the degradation of ozone?

(a) Hydrogen

(b) Chlorofluorocarbons

(c) Oxygen

(d) Water vapors

This question was addressed to me during an interview.

My question is based upon Environmental Issues in chapter Environmental Issues of Biology – Class 12

1 Answer

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The correct option is (b) Chlorofluorocarbons

The explanation: Chlorofluorocarbons (CFCs) enhances the degradation of ozone by disturbing the cycle of ozone formation. CFCs upon entering in stratosphere react with UV and release chlorine ions. These ions act as catalysts and degrade ozone releasing molecular oxygen.

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