Which of the following is correct regarding 'El Nino' effect?</h2></div>

"Burning of fossil fuels results in global warming". Give reasons to justify this statement.</h2&g…

What is the main source of water pollution in India?</h2></div>

Find the odd one out:<br> </h2></div>

Define the following terms :<br> Air pollution </h2></div>

What are the advantages of reforestation?</h2></div>

_____ shields the surface of the earth from ultraviolet (UV) radiation from the sun.</h2></div>

Deforestation generally decreases<span><br> </span></h2></div>