Pollution of Air and Water-Sample Questions

1.  Which gas is responsible for greenhouse effect?

2.  What is global warming?

3.  Which fuel is pollution free?

4.  What are alternative renewable fuels?

5.  What do you mean by �Van Mahotsav�?

6.  What is water pollution and its causes?

7.  What is smog?

8.  What are effects of global warming/

9.  What is portable water? Write its properties.

10.  Explain process of water treatment to make it drinkable.