Choose the factor that is primarily responsible for ozone layer depletion:
Correct answer: A. CFCs
- A. CFCs
- B. CBrCs
- C. CH2Br2
- D. All are correct
Explanation
Chlorofluorocarbons (CFCs) are highly stable compounds that, when they reach the stratosphere, are broken down by UV radiation to release chlorine free radicals. These radicals catalytically destroy ozone molecules, leading to the depletion of the ozone layer.
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