Question

how is delta formed? explained

Answer 1

In the coastal shallow areas where the rivers debouch , islands are formed by the river deposits . These Islands take the shape of Assamese letter ব or the english letter D . These Islands are therefore called delta . Deltas are formed in the lower course of a river .

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Answer 2

Answer:

As the river approaches the sea, the speed of the flowing water decreases and the river begins to break up into a number of streams called distributaries. The river becomes so slow that it begins to deposit its load. Each distributary forms its own mouth. The collection of sediments from all the mouths forms a delta.