Question

all the river in their lower course do not form a delta give reason ​

Answer 1

The tidal currents also cannot be too strong, as sediment would wash out into the water body faster than the river deposits it. The river must carry enough sediment to layer into deltas over time. ... This alluvium builds up to form the river delta.

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Answer 2

Answer:

Not all rivers form deltas. For a delta to form, the flow of a river must be slow and steady enough for silt to be deposited and build up.

Explanation:

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