Which effect intensifies when freeze-thaw cycles erode bedrock within a glacial cirque?

💡 Explanation

When freeze-thaw cycles occur within a cirque, ice exerts pressure, which widens existing cracks, causing rock fragmentation and removal due to frost weathering; hence accelerated headwall steepening. Therefore cirque headwall erosion accelerates, rather than flour production changes, basal sliding changes, permafrost expansion which rely on different mechanisms like glacial abrasion.

• Which effect increases when vegetation is removed from a reinforced levee system along a major river?
• Which effect increases downslope movement rate during solifluction given saturated active layer conditions?
• Which geological event results when isostatic rebound lags glacier melt?
• Which outcome is most likely when urban infrastructure crosses a major transform fault zone?
• Which outcome results when a delta experiences overloaded sediment deposition?
• Which erosional process forms a finger lake basin within a glacially carved valley?