Which outcome occurs when repeated freeze-thaw within a cirque's bergschrund occurs?

💡 Explanation

Increased rockfall occurs because freeze-thaw action expands water within rock fractures, and this pressure fragments the cirque headwall; this process is called frost wedging therefore accelerating erosion, rather than lichen growth or slope stabilization.

• Which risk increases when Arctic sea ice cover declines?
• What chemical weathering byproduct accumulates when dissolved bedrock's buffering capacity diminishes?
• Which outcome occurs when upper tropospheric winds accelerate due to temperature differences across Hadley cell boundaries?
• Which soil profile alteration results from prolonged bioturbation?
• Which outcome occurs when thawing permafrost destabilizes tundra?
• Which outcome is amplified by the Ferrel cell circulation?