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Which one of the following cause ozone layer depletion?

(a) Oxygen

(b) Mercury

(c) Sodium silicate

(d) Methyl chloroform

The question was asked at a job interview.

Origin of the question is Ozone Layer Depletion in portion Social Issues and the Environment of Energy Management

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Correct answer is (d) Methyl chloroform

Easiest explanation: Methyl chloroform belongs to ‘Ozone Depleting Substances’. There are other chemical substances apart from the chlorofluorocarbons that are generally grouped as ozone depleting substances. Methyl chloroform used on making industrial solvents.

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