Which process amplifies stream incision when tectonic uplift increases base level fall rates significantly?

💡 Explanation

When tectonic uplift increases base level lowering, stream incision accelerates, leading to increased hillslope instability and sediment delivery due to gravitational forces. This sediment influx overwhelms stream transport capacity, causing aggradation and increased abrasive power. Therefore, increased hillslope delivery amplifies incision, rather than isostatic rebound, meander evolution or glaciation which affect larger, regional scale processes.

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