1.

The figure given aside shows relative contributions of various green house gases to the total global warming.(i) Name the gases a and b.(ii) Explain how increase in green house gases in earth’s atmosphere leads to melting of the caps.

Answer»

(i) (a) N2O
(b) CH4
(ii) Increase in green house gases (GHGs) results in increased green house flux or trapping long wave radiations and sending them back to earth. It increases atmospheric temperature called global warming. High atmospheric temperature results in melting of ice caps and glaciers.



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