本题目来源于试卷: Stratospheric Ozone，类别为 IB环境系统与社会
[单选题]
Determine which of the fol2n* l5h ef7vzzlowing greenhousicw25(lq fdv 4e gases is correctly paired with its sour(vldq4 5i fw2cce.
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 gasesSource is Melting of permafrost in frozen tundra
参考答案: A
本题详细解析:
The melting of permafrost raakq+i+7 av*.a)ww p beleases methane gas into the atmosphere. Other sources of methane include landfills, oil and natural gas systems, and agriculture.
Nitrous oxide (Option B) is emitted from the combustion of fossil fuels, from solid waste, and also .a p+ a+aabw*w i)qk7vfrom agricultural sources. Carbon dioxide (Option C) is released by the combustion of fossil fuels, solid waste, trees and other biological materials. Fluorinated gases like hydrofluorocarbons (Option 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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