What is radioactive pollution? What are its effects?</h2></div>

From the following list, choose three microbes, which are suitable for organic farming and is in great demand these days…

In which of the following year, the depletion of the ozone layer have been noticed?</h2></div>

Multiple Choice Questions<br> BOD is a measure of<br> </h2></div>

What gases are involved in ozone depletion?<span><br> </span></h2></div>

Ideal conditions for a strong radiation inversion:<span><br> </span></h2></div>

Use of pesticides decreases water pollution.</h2></div>

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