Which of the following are main responsible for ozone depletion?

Chlorofluorocarbons

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Hydrocarbons

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Carbon monoxide

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Carbon dioxide

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Solution

The correct option is A Chlorofluorocarbons
Ozone depletion occurs when chlorofluorocarbons (CFCs) present in aerosols and refrigerants are released into the stratosphere.
Ultraviolet radiations from the sun break these CFCs molecules and release the chlorine atoms.
Chlorine atom reacts with the ozone (O₃) molecules and starts the ozone destruction cycle.
So, the correct answer is 'Chlorofluorocarbons'.

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