The main reason for ozone layer depletion is:

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$CFCs$

${Cl}_{2}$

${SO}_{2}$

$NO$

answer is A.

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Detailed Solution

Chlorofluorocarbon (CFC) accumulation in the atmosphere is the primary factor contributing to ozone layer depletion. High UV radiation combines with CFCs as it reaches the upper atmosphere, releasing chlorine atoms as a result. The ozone layer is being destroyed as a result of the reaction between these free chlorine atoms and ozone.

Hence, the correct option is A.

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