Only a small part of the sun's energy reaches the earth' s surface because most of it is__________.

A．[ A ]absorbed by the clouds in the lower atmosphere

B．[ B ] reflected by the gases in the upper atmosphere

C．[ C ] lost in the upper and lower atmosphere

D．[ D ] used to evaporate water from the oceans and lakes

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参考答案

答案解析

事实细节题。由第二段第二、三句话可知太阳的多数能量是被高空中的大气反射或者吸收。故选B。

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