Which mechanism forms bowl-shaped depressions specifically called cirques?

💡 Explanation

Glacial cirques form by rotational sliding erosion because the glacier's basal ice melts and slides, eroding bedrock; therefore, the glacier carves a bowl-shape rather than features created by stream erosion or tectonic upheaval.

• Which topographical feature forms down-slope following sediment deposition during episodic flooding cycles?
• Which mechanism causes increased coastal erosion near large river estuaries when upstream dams alter streamflow patterns?
• Which risk increases near transform plate margins during locked phases?
• Which outcome accelerates when thawing permafrost increases soil saturation on a hillside?
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• Which outcome occurs when seasonal wave energy increases along a coastal island system?