Question

why all rivers do not form delta​

Answer 1

Narmada and tapi are western rivers and Western rivers do not form Delta whereas they form Estuaries because, ... Hard Rocks of Western ghat don't allow Western flowing rivers to widen their mouth into sea, so these rivers form Estuaries whereas Eastern rivers flow through broken hills and mountain ranges.

Answer 2

Answer:

Because of the surrounding geology and the river's flow. Because of the nature of the seas into which the river is flowing. ... The river is slow-flowing, so most suspended matter is dropped as silts along the lower river, rather than at the mouth. The flows at the mouth are dominated by the tides, not the river flow.

Explanation:

thats why .......

hope u have understood....☺️☺️