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Relative contributions of CO2, CH4, CFCs and N2O towards global warming are: 

(a) 50 %, 30 %, 10 % , and 10 % respectively 

(b) 60%, 20%, 14%, and 6% respectively 

(c) 40 %, 30%, 20% and 10% respectively 

 (d) None of the above

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Correct option: (b) 60%, 20%, 14%, and 6% respectively


CO2 is the largest contributor towards global warming, followed by methane, CFCs and N2O.

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