Question

What would happen if ozone layer disappear

Answer 1

If ozone layer will disappear we will not be able to survive on the earth's as the ozone layer protect us from the harmful UV rays of the earth if ozone layer will not be there so the UV rays will directly fall on us

Answer 2

if ozone layer depletes then there would not be anything to save us from the harmful ultraviolet radiations of the sun and would thus result in various disease such as skin cancer.

hope that helps