Official 23 Lec 2
Question 3 of 6
Why does the professor discuss albedo?

A.

To point out that different surfaces have different reflective properties

B.

To suggest that the reflective surfaces on Earth should be increased

C.

To demonstrate how a cloud's thickness is measured

D.

To explain why clear air reflects a large amount of solar energy back to space

正确答案:A

显示答案
进入答题
00:00
00:00
隐藏原文

译文

精听文本