本题目来源于试卷: Energy Choices & Security，类别为 IB环境系统与社会
[单选题]
Identify the type of fossil fuel th ( d i6;i-heg2e u9rr/pri1nkobj7:bjat pro4 oumq,(1n84uh (naftjiflk ,duces the least amount of CO
2
when burned to produce energy.
A. Coal
B. Natural gas
C. Oil
D. All produce the same amount of CO 2
参考答案: B
本题详细解析:
Natural gas is composed mainly of methane (CH
4
f8sqp 6qjoj,/ h ntk7+
) and does not contain as many canhkt6 ,oj p7fs8q+qj/ rbon atoms as coal or oil. Therefore it produces less CO
2
when burned. Coal produces the most.
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