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← GeographyWhich risk increases due to freeze-thaw cycles around a cirque?
A)Enhanced rockfall and slope instability✓
B)Decreased permafrost active layer depth
C)Accelerated chemical weathering rates
D)Reduced glacial ice accumulation rate
💡 Explanation
Increased freeze-thaw action enhances rockfall and slope stability because frost wedging widens cracks, saturates, and destabilizes the rock faces surrounding the cirque through mechanical weathering; therefore rockfall risk increases rather than chemical weathering or changes to ice accumulation.
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