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01/11/2021 4:38 pm
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Which one of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contribute to total global warming?
(1) N2O 6%, CO2 86%
(2) CFCs 14%, Methane 20%
(3) Methane 20%, N2O 18%
(4) CO2, 40%, CFCs 30%
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01/11/2021 4:39 pm
Correct answer: (2) CFCs 14%, Methane 20%