Why does survival of fish and other aquatic animals become difficult during summer?</h2></div>

<span>The hard mineral crust formed at or near the surface of soil is known as</span></h2></div>

What is the farming called in which there is less use of chemicals and lesser production of waste?

Expand the term ODS</h2></div>

A rapid growth of photosynthetic algae in water develops 'bloom'. How would it affect the environment of water?</h2&g…

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

Biomedical waste is very hazardous for human life.</h2></div>

How is snow blindness caused in humans?</h2></div>