Question

How have human activities contribute to the decline of ozone layer

Answer 1

Answer:

we should not use Choloroflourocarbons and minimize the use of refrigerators, hair dryers

Answer 2

green house gases decline the ozone layer

Explanation:

chlorofluorocarbons are mostly cause of reduce ozone layer ,cfc presence of uv light to forms chlorate ions which reduce the O3 to O2

Hope you got the answer