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When a river meets a larger body of water, it slows down. This causes the river to lose energy and drop sediment at the river's mouth. This sediment can build up over time and form new land called
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Answers
Explanation:
When large amounts of alluvium are deposited at the mouth of a river, a delta is formed. The river slows down at the mouth, so it doesn't have the energy to carry all the silt, sand, and clay anymore. These sediments form the flat, usually triangle-shaped land of a delta.
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The place where a river enters a lake, larger river, or the ocean is called its mouth. River mouths are places of much activity.
As a river flows, it picks up sediment from the river bed, eroding banks, and debris on the water. The river mouth is where much of this gravel, sand, silt, and clay—called alluvium—is deposited.
When large amounts of alluvium are deposited at the mouth of a river, a delta is formed. The river slows down at the mouth, so it doesn’t have the energy to carry all the silt, sand, and clay anymore. These sediments form the flat, usually triangle-shaped land of a delta. Examples of deltas are the Nile River Delta in Egypt and the Mississippi River Delta in the U.S. state of Louisiana.