Plantation of saplings on a large scale is celebrated as:</h2></div>

Deforestation is the major cause of</h2></div>

Which of the following would happen in the absence of greenhouse effect in the atmosphere?</h2></div>

How can we overcome the problems of deforestation?</h2></div>

Explain the relationship between CFCs and ozone in the stratosphere.<br> </h2></div>

Multiple Choice Questions<br> Global warming can be controlled by<br> </h2></div>

Which of the following statements regarding ozone is incorrect ?</h2></div>

Which sewage contains biodegradable waste such as organic matter?