Question

how are deltas formed ​

Answer 1

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A delta is formed when the river deposits its material faster than the sea can remove it. ... Arcuate or fan-shaped - the land around the river mouth arches out into the sea and the river splits many times on the way to the sea, creating a fan effect.

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Answer 2

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Answer:

DELTA

When a river reaches a lake or the sea the water slows down and loses the power to carry sediment .

The sediment is dropped at the mouth of the river. Some rivers drop so much sediment that waves and tides can't carry it all away. It builds up in layers forming a delta.

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