Methane Is Approximately 23 Times More Powerful Than Carbon Dioxide

Methane is approximately 23 times more powerful than carbon dioxide as a greenhouse gas.Which are significant sources of methane emissions?
i.The digestive systems of ruminants (cows,sheep,etc. )
ii.Automobile exhaust
iii.Rice cultivation
iv.Decaying wetland vegetation

A) i only
B) i and ii only
C) ii only
D) i,iii,and iv only

Correct Answer:

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