World water day: World Water Day is celebrated every year on 22 March. The purpose of celebrating this day is to make people aware of the importance of water. This time the theme of Water Day is the glacier conservation that emphasizes the important role of glaciers in maintaining freshwater supply in the world and the need for protection efforts in view of climate change. Use of RO to purify water Nowadays, RO is used to purify water in cities. At the same time, people feel that if they areβ¦
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