What causes biological impurities in rainwater..Pls note its RAINWATER
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Biological impurities in water are caused by the presence of living organisms. These include algae, protozoa, pathogens, bacteria, viruses, microbes, and parasites along with their cysts (eggs) in contaminated water. The latter are simply called germs, microorganisms that can reproduce at alarming rates.
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Water from rainfall, streams, and wells can pick up harmful chemicals in the environment like acid and metallic elements. Biological components in water can include bacteria, algae, organic waste, amino acids, pathogens, viruses, microbes, and parasites.
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