Which landform change rapidly accelerates when surface permafrost degradation forms in cirques?

💡 Explanation

Thermokarst development accelerates due to ice melting within the permafrost of the cirque, causing terrain subsidence; because the altered landscape traps more heat, positive feedback drives more degradation rather than crevasse formation, which is linked to glacial movement.

• Which outcome occurs when a deep-sea hydrocarbon seep experiences seismic activity?
• Which mechanism causes the formation of lobate landforms associated with solifluction on Arctic slopes?
• Which oceanographic consequence results from intensification of the planetary Coriolis effect at higher latitudes?
• Which mechanism exacerbates flood risk when constructing buildings within an alluvial fan?
• Which outcome results as cave pH declines via biogenic respiration?
• Which process contributes significantly to the formation of freshwater lakes in tectonically active rift valleys?