Which geological change accelerates stream erosion in regions undergoing rapid glacial retreat?

💡 Explanation

When glaciers retreat rapidly, isostatic rebound occurs because the land rises due to reduced ice load causing steepened stream gradients, which increases the stream's erosive power. Therefore, isostatic rebound accelerating erosion results, rather than sediment reduction, thaw lessening infiltration, or vegetative stabilization which involve different mechanisms.

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