本题目来源于试卷: Photochemical Smog，类别为 IB环境系统与社会
[单选题]
Identify the chemical that is a major contributor to photowz5s2 uzla5.i* fk) p.v+z)zosqzd 9achemicalkio w )f.yj+j8r:ii5; ir +jct smog.
A. $CH_4$
B. $NO_2$
C. $SO_2$
D. $CO_2$
参考答案: B
本题详细解析:
$CH_4$and $CO_2$ are greenhouse gases that contribute to climate change.$SO_2$ reacts with $H_2O to contribute to the formation of acid rain.$NO_2$ reacts with sunlight and VOCs to contribute to the formation of chemical smog.
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