<span>Deforestation refers to</span><br> </h2></div>

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

Chernobyl nuclear tragedy occurred in</h2></div>

<span>The ozone hole over </span><span>Antarctica</span><span> was disco…

Ozone in the stratosphere is depleted by</h2></div>

Ozone depletion in stratosphere shall result in.</h2></div>

Name two international efforts to check ozone depletion</h2></div>

Given appropriate biological/ technical terms for the following:<br> The type of waste generated in hospitals and …