Template:Ety
Revision as of 04:48, 9 February 2013 by 116.202.204.118 (talk)
water is never pure in a chemical sense. It contains various kinds of impurities such as dust particles, dissolved gases, dissolved minerals, microscopic paints and animals. These are natural impurities and bacteria . These are natural impurities derived from the atmosphere, catchments area and soil.[1] [encyclopedia 1]
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