Chlorine free radical reacts with 'ozone' to form _______.<span><br> </span></h2></div>

Describe this topic:<br> Effect of sewage discharge on some important characteristics of a river</h2><div…

How does bioaccumulation occur?</h2></div>

Decrease in species diversity in tropical countries is mainly due to<br> </h2></div>

What is the potential danger of greenhouse effect?</h2></div>

Which of the following is responsible for the 80% depreciation in the ozone layer?</h2></div>

Deforestation will decrease<span><br> </span></h2></div>

Protective layer of ozone in the atmosphere exists in which layer?</h2></div>