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02/11/2021 10:36 am
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Which one of following pairs of gases are the major cause of “Green house effect”?
(1) CFCs and SO2
(2) CO2 and O3
(3) CO2 and N2O
(4) CO2 and CO
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02/11/2021 10:37 am
Correct answer: (3) CO2 and N2O