Clouds are formed from ______. [br] The supply of ground water is getting low be

游客2024-07-25  6

问题 Clouds are formed from ______. [br] The supply of ground water is getting low because of ______.

选项 A、conservation
B、poisonous water
C、pollution
D、population increase

答案 D

解析 原因题。本题要求回答“地下水的补给变小了,是因为。根据第二段第八句:“But a,the population increases and the need for water also increases,the ground water in some areas is getting dangerously low. ”可知,地下水的补给量变小是由于人口的增长所致,故选D。
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