Question

Give reason :

There is steady concentration of ozone in the stratosphere.

Answer 1

1. Ozone is a form of oxygen which is photo-dissociated and is generated by absorption of short wavelength UV radiations. 

2. Both generation and dissociation of ozone is in equilibrium. 

3. This is the equation which shows these conversions. 

O₃ → O₂ + [O] 

O₂ + [O] → UV RAYS → O₃

4. Therefore, there is steady concentration of ozone in the stratosphere.