Paper 1 · People, Development and Environment
Which of the following statements is/are true about methane as a greenhouse gas?
AMethane is the second most abundant anthropogenic greenhouse gas after carbon dioxide
BMethane accounts for about 20 percent of global emissions
CMethane is 25 times more potent than carbon dioxide at trapping heat in the atmosphere
DAll of the above ✓ Correct
Correct answer: (D) All of the above — All the statements about methane are true, so the answer is all of the above.
Explanation
★All the statements about methane are true, so the answer is all of the above.
★Methane is the second most abundant human-made greenhouse gas after carbon dioxide.
★It makes up about 20 percent of global emissions.
★It traps heat about 25 times more strongly than carbon dioxide.
★So each statement about methane is true.
★So the answer is all of the above.
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