Answers

2014-07-22T20:23:23+05:30
Water is essential to all living things and we need water to keep us alive and healthy.The cleaner the water the better is it for us.Do you want to drink water which has dust,and many other dirt?NEVER!!So to prevent this problem RO systems are made.They purify the water and we are able to drink it.So,it is important to purify water.
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  • Brainly User
2014-07-23T11:33:08+05:30
Water is needed by all plants and animals for their physiological activities
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