Ozone depletion occurs commonly due to_______________?
Correct answer: B. Chlorofluorocarbons
- A. Carbon dioxide
- B. Chlorofluorocarbons
- C. UV rays
- D. Deforestation
Explanation
Chlorofluorocarbons release chlorine radicals in the stratosphere, and these radicals catalytically destroy ozone molecules. UV radiation is absorbed by ozone rather than being the usual cause of its depletion, so c reflects a cause-and-effect confusion.
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