|Consider the following statements.|
|1. Methane is 20 times more effective than carbon dioxide as a greenhouse gas.|
|2. Carbon monoxide, nitrous oxide, water vapours are some of the highly potent greenhouse gases.|
|3. In Carbon credits trading by volume, china is the world leader. Which of the above statements is/are correct?|
A) 1, 2, 3
B) 2, 3
C) 1, 2
D) 1, 3
Correct Answer: D
Solution :[d] Carbon monoxide is not a greenhouse gas, at least directly.
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