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  3. What are the causes of water shortage? Please offer some solutions to de

What are the causes of water shortage? Please offer some solutions to de

游客2025-02-18  28
问题     What are the causes of water shortage?
    Please offer some solutions to deal with this problem.
选项
答案     Since the beginning of time, water has been shaping the face of the Earth. Water sustains human life, our environment and our cultures. But the global demand for water is increasing and the destruction of water-dependent ecosystem has accelerated.
    From my point of view, the main reason of scarcity of water resource is the rapid population growth, especially in developing countries. In order to meet the great demand for water, people exploit water resource in various ways. Water supply sources are being stretched to their limits. And surface and groundwater pollution is increasing rapidly. Research indicates that over 1 billion people still do not have access to safe water supplies and over 1.7 billion do not have access to adequate sanitation facilities.
    Another reason is the development of industry and agriculture. In some developing countries, some private factories make use of water resource low-efficiently and make much pollution. Irrigated agriculture also contributes to water scarcity. Despite the high yield, irrigation is extremely water intensive. It takes about 1,000 tons of water to grow one ton of grain and 2,000 tons to grow one ton of rice.
    Finding solutions of the problem involves the increase of worldwide awareness and international cooperation. Every individual should realise water crisis and save water. As to the government some effective measures should be taken, including erecting modern irrigation systems and increasing the number of sewage water recycling plants. Building more dams can also be an effective solution. Dams play an important role in detaining the surface rain water flowing from the mountains and would prevent the loss of rainwater straight into the sea.
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