CTET 2 Math and Science Jan 2012 Paper

Question : 80 of 120

Marks: +1, -0

The gases present in atmosphere that cause greenhouse effect are

Carbon dioxide, oxygen, nitrogen
Carbon dioxide, sulphur dioxide, methane
Nitrous oxide, oxygen, water vapour
Methane, water vapour, carbon dioxide

Solution:

Green house effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric green housed gases and is reradiated in all direction.
Contribution to the green house effect on Earth the four major gases are : -
(i) Water vapour (36 - 70%)
(ii)

CO_2

(9 - 26%)
(iii) Methane (49%)
(iv) Ozone (3-7 %)

Go to Question:

Prev Question

Next Question