Answers

2014-07-26T15:04:46+05:30
Water is purified to remove dust particles,germs and so on.
1. Boiling of water.
2. Adding chlorine.
3. Passing Ultra violet rays through water.
4. Distillation
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2014-07-26T15:06:48+05:30
We need to purify water so that the impurities are removed. This prevents us from the attack of diseases. Water can be purified by:
1) Distillation 
2) Sedimentation
3) Decantation
4) Boiling
5) Using purifying tablets
6) Making a solar still
7) Using a water purifier 
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