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Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?

ACarbon dioxide
BChlorofluorocarbons
CNitrogen oxides
DMethane

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Answer and explanation

Correct Answer: B: Chlorofluorocarbons

Explanation: The correct answer is B: Chlorofluorocarbons. Chlorofluorocarbons (CFCs) are the main culprit in the thinning of the ozone layer. These synthetic chemicals were used in refrigerators and aerosols, releasing chlorine atoms that destroy ozone molecules.

Which one of the following is the main culprit in the thinning of O...