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Gravity ! The source (or start) of a river is (usually) high up in a mountain or hill. As the water travels downhill, it combines with others - gradually widening and gathering pace.

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7y ago

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Why does a delta often forms where a river empties into the ocean?

A river ends its journy when it flows into a body of water such as a ocean or lake. Because the river water, such as an ocean or lake. Because the river water is no longer flowing downhill, the water slows down. Which makes sediment drop to the bottom. Sediment deposited where a river flows into into an ocean or lake builds upa landform called delta.


Why does a delta often form where a river empties into ocean?

A river ends its journy when it flows into a body of water such as a ocean or lake. Because the river water, such as an ocean or lake. Because the river water is no longer flowing downhill, the water slows down. Which makes sediment drop to the bottom. Sediment deposited where a river flows into into an ocean or lake builds upa landform called delta.


Why does a delta form often where a river empties into the ocean?

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