1.

Relative contribution of various green house gases to total global warming in ascending order is:

A. CO2 > CFC > CH4 > NO2
B. CO2 > CH4 > CFC > NO2
C. CH4 > CFC > CO2 > NO2
D. CFC > CH4 > CO2 > NO2
Answer» C. CH4 > CFC > CO2 > NO2


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