Question

How delta is formed?

Answer 1

When a single river drains into a big sea or ocean, travelling via other parts of the country it gets spreaded throughout itself and forms, Delta.

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.