Which risk increases as freeze-thaw cycles erode cirques?

💡 Explanation

Increased erosion leading to thinner barriers can increase the likelihood of glacial like outburst floods, because headwall weakening during nivation promotes dam collapse: therefore GLOFs are more likely, rather than other geological processes like sinkhole creation being related.

• Which mechanism primarily deflects air parcels moving poleward in upper-level atmospheric jet streams?
• Which horizon change accelerates with increased freeze-thaw cycles?
• Which outcome occurs when subduction ceases at a trench?
• Which phenomenon primarily drives the formation of linear valleys along oceanic transform faults?
• Which risk increases when rapid aggradation buries alluvial sediments?
• Which mechanical effect primarily initiates deep-focus earthquakes within subducting lithospheric slabs?