Question

the depletion of Ozone layer is a cause of concern why

Answer 1

the depletion of ozone layer is due to the increase in the level of green house gases like co2 , sulfur etc. this gases are harmful for us . due to their increasing the ozone layer get depleted . to protect this we have to control the uses of AC etc

Answer 2

the depletion of the ozone layer is a great concern because the ozone layer prevents the entering of harmful ultraviolet rays into the earth's atmosphere.If ozone layer will be depleted these harmful rays will enter the earth's atmosphere and it can cause skin diseases, allergies,eye diseases and other health related problems to humans and other living organism.