如果地球上的淡水总量为100%,那么冰川水,地下水,湖泊水,各占多少?
是淡水总量为100%!别看成了总水量!
人气:136 ℃ 时间:2019-08-19 00:56:35
解答
其中海水占97.3%,淡水只占2.7%.淡水资源中冰山、冰冠水占77.2%.地下水和土壤中水占22.4%,湖泊、沼泽水占0.35%,河水占0.1%,大气中水占0.04%
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