Which erosional process primarily drives the formation of a cirque in mountainous regions?

💡 Explanation

With freezing and thawing cycles, glacial plucking and abrasion effectively erodes bedrock, creating progressively larger bowl-shaped depressions because ice crystallization within weaknesses extracts rock material coupled with ice scraping. Therefore plucking and abrasion contribute to cirque formation, rather than processes like rain, fracture, or wind which lack the directed force.

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