Breathing and Exchange of GasesHard

Question

Which one of the following pair of gases are the major cause of green house effect ?

Options

A.CO2 and CO
B.CFCs and SO2 
C.CO2 and N2O
D.CO2 and O3

Solution

The phenomenon of keeping the earth warm due to presence of certain radiaticely gases inthe atmosphere is called green house effect (Fourier, 1827). The name is based after asimilar warmer interior in a glass-enclosed green house where glass panes, CO2 and watervapour allow the solar radiation to enter but prevent the escape of long wave heatradiations. CO2 and N2O are the major cause of ″green house effect″. CO2 contributes60% of total global warming. N2O contributes 6% to green house effect.

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