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All of us need water in life. Water is needed for various purposes, for drinking, cooking, washing, bathing, and more. The water available in nature is already heavily polluted, whether waste, metal, household waste or other pollutants. So we need certain treatment to get clean water.
https://steemit.com/lifestyle/@abiproud/we-need-clean-water-how-to-prepare-clean-water-dec0dcd06859c
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