Riner water is potable Give any two reasons of it
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Answer:
Tap water has usually been treated by the local municipality to make it potable, but there are times when the supply has been contaminated and you must treat water before using it. Non-potable water is untreated water from lakes, rivers, groundwater, natural springs, and untested ground wells.
Never drink water from a natural source that you haven't purified, even if the water looks clean. Water in a stream, river or lake may look clean, but it can still be filled with bacteria, viruses, and parasites that can result in waterborne diseases, such as cryptosporidiosis or giardiasis.
You can purify water by treating it with a chemical; either chlorine or iodine. You can also use filtration or ultraviolet light. Another simple way is to boil the water. All of these methods are effective provided they are done properly.
Look for animal tracks, swarms of bugs, and green vegetation nearby—if other living things are drinking from it, you probably can, too. Most of what makes water dangerous isn't visible, and that's true of taps as well as streams.
Explanation:
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