The world's fresh water is very scarce. For 2535 (1992) The United Nations General Assembly declared March 22 of each year as World Water Day "Water" or "World Day for starting in the first year, and the year 2536 (1993) solicitation let countries pick a national environment day to commemorate the importance of water, which is a basic requirement of the thing.There are all kinds of life on Earth. Moreover, as among the world's water conservation save water resource development, maintenance, and management of resources for sustainable freshwater for the future, as well as fulfilling the recommendations of the meeting of the United Nations for the year 2535 (1992) on environment and development, known as Agenda 21 activities, International Conference on the subject of world countries. Is as follows:
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