Question

what is meant by the depletion of ozone layer ? State (a) two causes and (b) two effects of deplation of ozone layer in the atmosphare.

Answer 1

due to increased in the level of carbon di oxide the earth temperature also increases and there in hole in layer of ozone this is depletion of ozone
causes are increase in earth temperature and burring of fossil fuel
effect are due to this the UV rays of sun can reach to the earth and this cause marble cancer and many more