If $C{O}_2$ is absent in the atmosphere of the earth, then:
1.  Temperature will decrease
2.  Temperature will increase
3.  Plants will flourish well
4.  No effect

Besides CH₄ and CO₂, another green house gas is:
1.   SO₂
2.   NH₃
3.   N₂O
4.   CFC 

Temperature variation in Pacific ocean in present time is called:
1.  Cyclone effect
2.  El Nino effect
3.  Greenhouse effect
4.  Gaudikov's effect

Best economic method to harvest solar energy:
1.  Solar cell
2.  Energy plantation
3.  Cultivation of sugar cane then energy obtain by burning it
4.  Solar cooker

Green house effect is:
1.  Gardening outside the house
2.  Global cooling
3.  Global warming
4.  Green colour house

Maximum greenhouse gas is released by which country:

1. India

2. France

3. U.S.A.

4. Britain

Identify the correctly matched pair:

1. Kyoto protocol – Climatic change

2. Montreal Protocol - Global warming

3. Basal Convention – Biodiversity Conservation

4. Ramsar Convention – Groundwater pollution