Question

how is delta formed​

Answer 1

Answer:

A delta is formed by a river as it deposits soil particles at the mouth of the river

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.