本题目来源于试卷: Photochemical Smog，类别为 IB环境系统与社会
[单选题]
List the main greenhouse z;:6 fhzw;ev lgx3sd:5vx.z(u n iejvu1ws 22 cases.
A. Example 1 is ozone Example 2 is carbon dioxide Example 3 is methane
B. Example 1 is water vapour Example 2 is carbon dioxide Example 3 is methane
C. Example 1 is water vapour Example 2 is carbon dioxide Example 3 is nitrogen dioxide
D. Example 1 is ozone Example 2 is carbon dioxide Example 3 is nitrogen dioxide
参考答案: B
本题详细解析:
The main greenhouse gases are water vapourg ir wywf-kb6),8+lzu , carbon dioxide and methane.
Whilst ozone is a greenhouse gas, it is not a main one. This means options A and D are incorrect. Tropospheric ozone plays a bigger role in smog and stratosphere ozone wkl g +fi b),-r6zuw8yin protecting life from UV radiation from the sun.
Nitrogen dioxide is a pollutant produced when burning fossil fuels and is part of photochemical smog. It is not a greenhouse gas, so options C and D are incorrect.
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