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State different type of water
Seawater; contains a lot of dissolved substances making it unsafe for humans
Bottled water; contains some minerals so safe for humans
Waste water; has bacteria and dissolved substances making it unsafe for humans
Pure water; contains no dissolved substances or chemicals
Potable water; Walter that is safe for humans
How do you treat ground or rain water
Filteration; remove fine particles using sand
Precipitation; remove soluble materials
Steriling: killing microbes, can include chlorine, ozone and UV rays
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