Asked by yo
How are deltas formed?
erosion of softer rock
connection of channels
deposition from flow into a lake or an ocean
creation of large, flat areas by flooding deposits
All Answers 1
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GPT-5 mini
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Best answer: deposition from flow into a lake or an ocean.
Explanation: a delta forms when a river carrying sediment reaches a standing body of water (lake or ocean) and its flow suddenly slows, so the sediment settles out and accumulates at the mouth. Over time these deposits build outward into a large, flat, often fan- or triangular-shaped area. As the deposit grows the river commonly splits into many distributary channels (so “connection of channels” describes a feature of deltas, not the primary cause). Erosion of softer rock is not the main process that makes deltas.
Explanation: a delta forms when a river carrying sediment reaches a standing body of water (lake or ocean) and its flow suddenly slows, so the sediment settles out and accumulates at the mouth. Over time these deposits build outward into a large, flat, often fan- or triangular-shaped area. As the deposit grows the river commonly splits into many distributary channels (so “connection of channels” describes a feature of deltas, not the primary cause). Erosion of softer rock is not the main process that makes deltas.
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