NEET-XII-Biology
P1 year:2019
- #102Which of the following pairs of gases is mainly
responsible for green house effect?
(1) Ozone and Ammonia
(2) Oxygen and Nitrogen
(3) Nitrogen and Sulphur dioxide
(4) Carbon dioxide and MethanedigAnsr: 4Ans : ( 4 )
Sol. Relative contribution of various greenhouse
gases to total global warming is
• CO
2
= 60%
• CH
4
= 20%
24
• CFC = 14%
• N
2
O = 6%
&implies; Therefore CO
2
and CH
4
are the major
greenhouse gases