Which feedback effect accelerates cirque formation in alpine regions with seasonal snow cover?

💡 Explanation

When freeze-thaw cycles occur around a cirque, frost wedging intensifies because water expands upon freezing, fracturing rocks. This increases sediment available for glacial erosion, ultimately accelerating the cirque formation. Therefore freeze-thaw amplification is correct, rather than albedo changes, permafrost expansion, or vegetation growth, which inhibit erosion.

• Which consequence results when crustal divergence is restricted?
• Which risk increases when thawing permafrost accelerates solifluction on a hillside?
• Which process causes increased geyser activity near stratovolcanoes?
• Which geological risk increases when thawing permafrost destabilizes boreal forest soil?
• Which process dominates sea stack formation given consistent wave action?
• Which outcome is caused by increased acidity inhibiting upwelling?