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Geography

Which glacial outcome accelerates when meltwater is trapped within cirques?

A)Enhanced bedrock freeze-thaw weathering
B)Increased isostatic rebound velocity
C)Decreased rate of glacial calving
D)Stabilized permafrost layer formation

💡 Explanation

Enhanced freeze-thaw happens because meltwater enters bedrock fractures within cirques, and regelation causes expansion and cracking. Thus, bedrock weakens, leading to accelerated weathering, rather than slower bedrock disintegration, which would occur without trapped water.

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