2. 外语
  3. A Soot’s Role in Changes in the Climate and the Atmosphere B Observations of Warming in the Northern Hemisphere C Explanation

A Soot’s Role in Changes in the Climate and the Atmosphere B Observations of Warming in the Northern Hemisphere C Explanation

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问题 A  Soot’s Role in Changes in the Climate and the Atmosphere
B  Observations of Warming in the Northern Hemisphere
C  Explanation of Increased Warming Effect Caused by Soot
D  Effort to Reduce Snow Albedo
E  Ways to Reduce Soot Emission
F  Greenhouse Gases as the Main Factor of Global Warming
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选项
答案A
解析 本题答案的依据是第五段的下列句子：Soot’s increased absorption of solar energy is especially effective in warming the world’s climate. “This forcing is unusually effective, causing twice as much global warming as a carbon-dioxide forcing Of the same：magnitude，” Hansen noted．
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