Question

Describe how ozone present in the atmosphere is important for sustaining life on earth.

Answer 1

Ozone layer present in stratosphere functions as a shield against high energy and harmful ultraviolet radiations (100-320 nm). In the absence of ozone layer, the extremely harmful UV radiations will reach earth, cause large scale mutations to organisms, reducing photosynthesis, developing skin cancers and herpes and death of young ones. By filtering out harmful UV radiations, ozone protects the immune system of living beings against various diseases. It is therefore, essential for maintaining a healthy life on earth and survival of young ones.