Which process most directly causes terrace formation in a river valley after alluvial deposition?

💡 Explanation

When base level drops or uplift occurs, incised stream rejuvenation happens because the river's erosive power increases, causing it to cut down into its former floodplain creating terraces. Therefore terrace formation results, rather than isostatic, eustatic events or differential weathering which influence regional uplift/subsidence and surface processes differently.

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