Which erosional outcome occurs when a dam interrupts alluvial sediment deposition downstream?

💡 Explanation

Increased bank erosion increases because sediment starvation intensifies hydraulic action; lacking sediment, the river's erosive power concentrates on the banks causing greater instability, therefore bank erosion is directly caused, rather than braiding of streams or stabilization.

• What outcome develops where mountain river flow enters unconfined floodplain terrain?
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• Which outcome occurs when a permafrost thaw destabilizes riverbanks along Arctic streams?
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