Question

When does the speed of the river become very slow? (Answer in brief)​

Answer 1

Answer:

A place where water flows fast in a river is where the width is narrow and the bottom steep. An example of such a river would be in a gorge of the upper reaches. Usually the speed of river water is fastest in the upper reaches. It becomes slower at the middle reaches and the slowest at the lower reaches.

Answer 2

As the river approaches the sea, the speed of the flowing water decreases and the river begins to break up into several streams known as distributaries. Then a time comes when the river becomes very slow and it begins to deposit its load. Each distributary forms its own mouth.