本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 国际高中通用物理
[单选题]
On a clear day, the sky appears to be more blue p ip;0s:2jzqltoward the zenith (overhead) thlw92ch m,cknh .lcg(3 an it does toward the horizon. This occurs be9,l(mhh3lk.gc c wnc2cause
A. the atmosphere is denser higher up than it is at the Earth's surface.
B. the temperature of the upper atmosphere is higher than it is at the Earth's surface.
C. the sunlight travels over a longer path at the horizon, resulting in more scattering.
D. none of the given answers
参考答案: C
本题详细解析:
暂无
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