Answers

2015-10-10T14:50:01+05:30
Before 50 yrs:we had plenty of water to drink and to use for other purposes.
present status:we have used them for cleaning animals.so we ourselves polluted the water.
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  • Brainly User
2015-10-10T14:51:29+05:30
before 50 yrs:we had plenty of water to drink and to use for other purposes.
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