Question

why flow of water is slow at bank and fast in between​

Answer 1

Answer:

Generally, anything that increases the surface area of the channel, against which the water flows will tend to slow the flow because of the increase in friction. Anything that reduces surface area also reduces the amount of friction and causes faster flow.

Explanation:

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Answer 2

Answer:

Here, the water will hit against the bank and create turbulence. Faster, more turbulent water has a greater erosional capacity than slower, less turbulent water.

Explanation:

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