Full form of CEPHRI.</h2></div>

Where is a good ozone present? Why is it called so?</h2></div>

Why is CNG (Compressed Natural Gas) preferred over petrol?

As it travels along the food chain, the concentration of DDT<span><br> </span></h2></div>

Which of the following is the consequence of deforestation?

Which of the following waste can be put into deep pits in the ground and be left for the natural breakdown?

Why ozone hole forms over Antarctica? How will enhanced ultraviolet radiation affect us?</h2></div>

Ozone is present as a chief constituent in which region of the atmosphere?<br> </h2></div>