Which of the following is the main factor of water pollution?</h2></div>

The measurement of rate of oxygen utilisation by a unit volume of water over a period of time is to measure.<br> &…

Which among the following pairs is incorrectly matched?<br> <span>Protocol/Convention : Issue</s…

'Human activities' are playing main role in causing;<span><br> </span></h2></div>

A higher biochemical oxygen demand in a particular segment of a river indicates that</h2></div>

Classify the given sources of water pollution as natural and man made.<br> (i) Domestic waste<br> (ii) Dead …

Which of the following statements is correct?   </h2></div>

(a) Discuss about the major programs that the Ministry of Environment and Forests, Government of India, has initiated fo…