Global Shortage of Fresh Water

admin2018-05-24  51

问题     Global Shortage of Fresh Water

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答案 Most people believe that the supply of fresh water on the earth is inexhaustible. They can get it from a variety of sources, including rivers, lakes, wells and the rain. It never occurs to them that fresh water will be used up. As a matter of fact, the world is short of fresh water. With the rapid increase of population and fast development of industries, water is more needed than before. At the same time, a large amount of water has been polluted and wasted every day. Some big cities in China have already been facing the problem of water shortage. There, water supply is controlled and industry has been restrained. Therefore, it is an urgent task for us to find new ways to save water. We should make full use of fresh water and reuse polluted water. Besides, certain law should be made to prevent water from being polluted. At the same time, we should find new sources of fresh water such as purified sea-water and icebergs. Only through these efforts can we solve the problem of fresh water shortage.

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