Question

Ozone formation takes place in the stratosphere of our atmosphere. 

(a) Explain how the energy of the Sun helps in the formation of ozone.

(b) Why is ozone formation at ground level considered a pollutant? 

(c) State two health consequences of ozone layer depletion on human health.

Answer 1

(a) High energy UV radiation from the Sun breaks apart some of the molecular oxygen into free oxygen.

The free oxygen then combines with the remaining molecular oxygen to form ozone.

(b) Ozone is deadly to humans at lower levels of the atmosphere.

(c) Two consequences stated below :

Skin cancer 

Cataract