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13 May, 16:53

Water quality and purification

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  1. 13 May, 16:57
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    Water quality is measured by several factors, such as the concentration of dissolved oxygen, bacteria levels, the amount of salt or the amount of material suspended in the water.

    purification is an act or instance of freeing from impurities or of being freed from impurities.
  2. 13 May, 17:20
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    Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water
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