What is van mahotsava? What is its social impact?</h2></div>

Which of the following conditions lead to formation of ozone?</h2></div>

What is / are the likely consequences of deforestation?</h2></div>

Lead in the atmosphere can cause</h2></div>

The diagram given shows the green house effect. Which of the following would have been in the absence of greenhouse effe…

Maximum ozone depletion is caused by</h2></div>

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

Supersonic jets cause pollution by thinning of</h2></div>