Huge quantity of sewage is dumped in a river. The BOD will.</h2></div>

Which of the following are the correct approaches to reduce global warming ?<br> (i)   Use of fo…

If we uncover half of the forest, covering of the earth, what crisis will be produced at most and at first?<br> &l…

The pesticides used in organic farming are<br> </h2></div>

Observe figure and answer the following questions:<br> <br> (i) What ecological term is used to describe the…

What is done in integrated organic farming?

<span>Name any two water pollutants which are toxic for plants and animals.</span></h2></div>

What happens when water is deoxygenated due to algal growth?