Question

Write a short note on thinning of the ozone layer.

Answer 1

Ozone layer depletion:

1. The ozone layer is located in the lower atmosphere of the earth.
2. It has the ability to absorb roughly 97-99 per cent of the sun's damaging UV radiation, which can kill life on Earth.
3. The gradual thinning of the earth's ozone layer in the upper atmosphere owing to the production of chemical compounds containing gaseous bromine or chlorine from industry or other human activities is referred to as ozone layer depletion.
4. The main source of ozone layer depletion is chlorofluorocarbons or CFCs.
5. Solvents, spray aerosols, freezers, and air conditioners, among other things, emit these.
6. The ultraviolet radiations in the stratosphere break down chlorofluorocarbon molecules, releasing chlorine atoms.
7. These atoms degrade ozone by reacting with it.