Which landscape feature dominates when nivation weathers steep cirque headwalls extensively?

💡 Explanation

When nivation (freeze-thaw weathering) acts extensively on cirque headwalls, it creates tiered benches due to differential erosion along lines of weakness because ice lens growth pries away rocks. Therefore stepped, rock benches result, rather than hanging valleys, horns/aretes, or alluvial fans because these features don't arise directly from headwall nivation.

• Which outcome occurs in a delta plain's distributary channels because natural levees collapse?
• Which process MOST accelerates alluvial fan formation at a fault-bounded mountain front?
• Which outcome related to habitat vulnerability increases when a barrier island's dune erosion exceeds accretion?
• Which process restricts floodplain development alongside a steep alluvial fan?
• Which outcome is amplified downwind when coastal upwelling occurs?
• Which process causes fertile farmland development from loess?