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प्रश्न
What are the three methods of removing germs from natural water? Explain.
टिप्पणी लिखिए
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उत्तर
Three methods to remove germs :
1. By boiling: Boiling kills germs present in water.
2. Adding potassium permanganate: By adding potassium permanganate in the well the germs can be killed.
3. Chlorination: After filtration water is passed through chlorination tank here chlorine kills the germs.
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