Which element is cause of itai itai disease?</h2></div>

Phosphate pollution is brought about by</h2></div>

  <span>Which among the following is a major cause of water pollution?</span></h2>&l…

Incinerator is ________.<br> </h2></div>

What is hybrid vehicle technology? Expalin is advantages with a suitable example?</h2></div>

What is Air pollution? What are the main sources of air pollution? Write a few lines about each of them<span>.<…

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

Define BOD. What is its significance in an aquatic ecosystem?</h2></div>