Which slope stability risk increases when repeated freeze-thaw cycles affect shale bedrock underlying a tundra region with solifluction?

💡 Explanation

When freeze-thaw cycles affect bedrock, ice segregation occurs because water expands upon freezing within rock fractures which weakens it and separates and uplifts the layers, accelerating solifluction-driven soil creep. Therefore creep acceleration risk increases, rather than gully formation, block slides or debris flows, which require different triggering conditions or compositions.

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