Which mechanism causes the formation of freshwater lakes after glacial retreat?

💡 Explanation

When glacial ice melts after retreat, isostatic rebound occurs because the land slowly rises up after being depressed by the weight of the ice, eventually forming basins that fill with meltwater to become lakes. Therefore, isostatic rebound is the correct answer as the others are not caused by glacial activity, but thermal, volcanic, and wind processes instead.

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