Question

Why in upper course river water is less ​

Answer 1

Answer:

At the upper course of the river near the source, the river is very steep and very slow. ... The river is also quite wide but still not very deep and there is more water and the rocks are smaller so there is less friction allowing the flow of the river to be faster but more erosion due to the faster flow of the water

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Answer 2

At the upper course of the river near the source, the river is very steep and very slow. ... The river is also quite wide but still not very deep and there is more water and the rocks are smaller so there is less friction allowing the flow of the river to be faster but more erosion due to the faster flow of the water.