Which erosional effect accelerates cirque formation located on a northern-facing mountain aspect at high latitude?

💡 Explanation

When a cirque is located on the north side in high latitudes, increased freeze-thaw weathering cycles occurs because it reduces insolation and maximizes ice formation, accelerating the plucking and abrasion crucial to cirque erosion. Therefore, freeze-thaw weathering is the primary driver, rather than acid rain, aeolian abrasion or geothermal activity, all of which require alternate conditions.

• Which outcome occurs in a delta region when artificial levees prevent seasonal flooding?
• Which process initiates headwall erosion resulting to expansion of mountain cirques?
• Which geomorphic effect accelerates floodplain widening due to lateral erosion in alluvial rivers?
• Which risk increases when mountain streams fed by glacial melt reach elevated temperatures?
• Which risk significantly increases when rising magma incorporates substantial groundwater near a stratovolcano crater?
• Which erosional outcome amplifies when river levees artificially constrain channel width?