Value based questions.<br> What may be the consequences of deforestation?</h2></div>

Which of the following is a secondary treatment for water pollution?

Chlorofluorocarbons cause<br> </h2></div>

Who is the greatest enemy of nature and organism?</h2></div>

<p><span>How do you classify the various sources of water pollution?</span></p></h2></d…

The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:<span><br&g…

E-waste causes _________ pollution.<br> </h2></div>

Explain the relation between the greenhouse effect and global warming.</h2></div>