
Bustami Arifin
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2017-07-09 16:13
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Kinds and the impact of hard water into the human body, but do not try to drink it or watering people with hard water !!!
What is sulfuric acid? How will it affect human exposure? The degree of acidity is measured using a unit of pH (potential of Hydrogen). pH is measured on a scale from 0 to 14. Pure neutral water, at a
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