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Geography

Which outcome results when freeze-thaw cycles excessively erode bedrock?

A)Formation of deepened glacial cirques
B)Increased thermohaline circulation rate
C)Acceleration of subduction zone volcanism
D)Enhanced stratospheric ozone depletion

💡 Explanation

Glacial cirques deepen due to nivation, a type of frost weathering; because repeated freeze-thaw action fractures the rock. This mechanical weathering disintegrates the bedrock, therefore intensifying cirque erosion rate, rather than influencing oceanic or atmospheric processes.

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