In stratosphere `CFCs` gets broken down by the action of powerful `UV` radiation releasing:

Assertion: In the stratosphere, ozone is produced by the action of UV radiations on dioxygen. Reason: UV radiations split the molecules oxygen into free oxygen (O) atoms which combine with molecular oxygen to form ozone.

Which of the following, present in the stratosphere prevents 99.5 percent of the sun’s harmful UV radiations from reaching the earth’s surface ?

CFCs split up in stratosphere to release chlorine by the action of

Assertion : Ozone is destroyed by CFCs in the upper stratosphere. Reason : Ozone holes increase the amount of UV radiation reaching the earth.

CFC s split up in strastosphere to release chlorine by the action of

CFC s split up in strastosphere to release chlorine by the action of

Assertion : Ozone is getting depleted due to CFCs Reason: With depelction of ozone layer more UV radiation filters into troposphere