Ozone is present in the stratosphere of the earth's atmosphere in the form of a protective shield.
Ozone (O3) a molecule formed by three atoms of oxygen. It is a deadly poisonous gas. However, at the higher level of atmosphere, it performs an essential function. It shields surface of earth from ultraviolet radiation (UV) of solar radiations which is highly damaging to organisms, it is known to cause skin cancer, cataract in human beings.
