Question

ring water in the house?
3. What is a dam built on?
4. What must we keep in mind while using water?
5. What is water pollution?​

Answer 1

Answer:

Ans 3. Dam, structure built across a stream, a river, or an estuary to retain water. Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for use in industrial processes.

Ans 4. The main thing we must keep in mind while using water is, the proper use of it for any work like agriculture, washing, cleaning etc.

Ans 5. Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment

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Answer 2

Answer:

3. Answer, Dam, structure built across a stream, a river, or an estuary to retain water. Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for use in industrial processes.

4. Answer, The main thing we must keep in mind while using water is, the proper use of it for any work like agriculture, washing, cleaning etc.

5. Answer, The addition of harmful chemicals to natural water. Sources of water pollution in the United States include industrial waste, run-off from fields treated with chemical fertilizers, and run-off from areas that have been mined.

Explanation:

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