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SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH

Subject :NSO Class : Class 5

Which of following sources of water is the least significant source of usable water?

ARain water
BRiver water
CLakes
DSea

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Ans 1:

Annavi Bajpayee from DPS Sector 19, Faridabad

D) SEA WATER IS SO SALTY THAT IT CANNOT BE USED IN EITHER AGRICULTURAL OR DOMESTIC USE.