問題詳情
12. The primary reason that polar regions are cooler than the equator is that ________.
(A) the polar atmosphere is thinner and contains less greenhouse gases than the rest of theatmosphere
(B) the poles are always pointing away from the sun
(C) solar radiation strikes the poles at a lower angle and travels through more atmosphere
(D) the poles are farther from the sun than is the equator
(E) all of the above
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
用户評論
【陳夢陽】評論
The main reason polar regions are cooler, cooler than the equator is that solar radiation strikes the polar at the lower angles and the travels to more atmosphere to the polls and further from the sense than in the liquidators. The solar polar atmosphere thinners and contain fewer greenhouse gasses.