zhf200403
幼苗
共回答了12个问题采纳率:91.7% 举报
2/3 of the earth that we are living on is covered by water. Salty water takes 97.5% of total amount of water. Glacial water that human being cannot use takes 87% in the rest 2.5% fresh water, so that the fresh water we can use is 0.26% in the total amount of water on the earth. However, most of the fresh water we can use is underground. What we human being can actually get from rivers and lakes is only 0.014% of the total amount of water on the earth.
More than 80% disease and more than 30% death is related to polluted drinking water.
海归纯手工翻译.
1年前
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