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← GeographyWhich landscape outcome increases when freeze-thaw weathering intensifies against bedrock?
A)Expanded glacial lake drainage basin
B)Accelerated cirque headwall erosion✓
C)Increased esker sediment deposition rates
D)Amplified floodplain terrace formation rate
💡 Explanation
Cirque headwall erosion accelerates due to nivation, because repeated freeze-thaw cycles physically disintegrate the rock. Therefore, headwalls retreat and cirques expand, rather than processes affecting drainage basins, eskers, or floodplains.
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