本题目来源于试卷: Continuity and Change D.12 Climate Change，类别为 IB生物学
[单选题]
Which of the following s4 fs, 4fe; 1/pdhvrtegreenhom.qvbdjyo+ls8yn 0uaka6p,*t1: mb (use gases is correctly paired with its source?
A. Greenhouse gas is Methane; Source is Melting of permafrost in frozen tundra
B. Greenhouse gas is Nitrous oxide; Source is Landfills
C. Greenhouse gas is Carbon dioxide; Source is Production of aluminium and magnesium
D. Greenhouse gas is Fluorinated gases; Source is Melting of permafrost in frozen tundra
参考答案: A
本题详细解析:
The melting of permafrost releases methane gas into the atmosphere. Other sources of methane include landfills, oil and natural gas systems, and agriculture. Nitrous oxide (Choice B) is emitted from the combustion of fossil fuels, from solid waste, and also from agricultural sources. Carbon dioxide (Choice C) is released by the combustion of fossil fuels, solid waste, trees and other biological materials. Fluorinated gases like hydrofluorocarbons (Choice D) are emitted from household and industrial processes; even if present in small amounts, they trap much more heat than carbon dioxide.
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