How is the river deposition useful to man?

1.	How is the river deposition useful to man?
Answer» 1. As water in a river flows down a slope, it plucks sediment from the land. Other streams join it forming a broad river basin. 2. The water carries soil, sand and sediments down stream. 3. As the river reaches flatter ground, it slows down and drops the sediments there. This is called deposition. 4. The sediments build up a flood plain. 5. At the river’s mouth, the water loses its force, drops all its sediments and thus deltas are formed. 6. Flood plains and deltas make fertile farm land. 7. The sediments deposited in flood plains and deltas are called silt. 8. Silt is rich in nutrients. 9. Many ancient civilisations flourished in flood plains and deltas. Thus the deposition of rivers are useful to man.

Answer»

1. As water in a river flows down a slope, it plucks sediment from the land. Other streams join it forming a broad river basin.

2. The water carries soil, sand and sediments down stream.

3. As the river reaches flatter ground, it slows down and drops the sediments there. This is called deposition.

4. The sediments build up a flood plain.

5. At the river’s mouth, the water loses its force, drops all its sediments and thus deltas are formed.

6. Flood plains and deltas make fertile farm land.

7. The sediments deposited in flood plains and deltas are called silt.

8. Silt is rich in nutrients.

9. Many ancient civilisations flourished in flood plains and deltas.

Thus the deposition of rivers are useful to man.

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