Q1. Why dams are built on rivers?
Q2. Why level of water in ocean and seas usually does not change?
Q3. Define water pollution.Write two causes and two effects of water pollution.
Q4.What are the consequences of wastage of water?
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BECAUSE WE USE THE WATER TO GENERATE ELECTRICITY AND SOMETIMES THE WATER IS OVERFLOWING THE DAM IS PROTECT THE NEAR VILLAGE
BECAUSE WE USE THE WATER TO GENERATE ELECTRICITY AND SOMETIMES THE WATER IS OVERFLOWING THE DAM IS PROTECT THE NEAR VILLAGE
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