Which long-term effect results when tectonic uplift reduces river sinuosity across an alluvial plain?

💡 Explanation

Reduced sinuosity increases stream gradient, enhancing erosional power through stream incision; this is channel downcutting, and decreased deposition arises because increased flow competence carries alluvium downstream rather than adding to floodplain deposits. Abrasion dominates, rather than accretion.

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