Question

What are the cause of ozone layer depletion?​

Answer 1

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Man-made causes of depletion of ozone layer:

The main cause for the depletion of ozone is determined as excessive release of chlorine and bromine from man-made compounds such as chlorofluorocarbons (CFCs).

The emission of ODS account for roughly 90% of total depletion of ozone layer in stratosphere.