Which process exacerbates debris flow risk on an alluvial fan originating from glacial valleys?

💡 Explanation

When cyclical glacial advance and retreat occurs, paraglacial slope weakening happens because ice removal destabilizes valley walls, leading to increased sediment availability for debris flows on the alluvial fan. Therefore debris flow risk increases, rather than decreasing via vegetation, stabilization, or rainfall reduction.

• Which process establishes distinct stratification layers within a dimictic lake?
• Which glacial process creates tarns within cirques after glacial retreat?
• Which process primarily carves and deepens fjord valleys formed during glacial periods?
• Which landform results through freeze-thaw weathering and glacial erosion causing cirque enlargement?
• Which process increases when isostatic depression ceases unloading glacial fjords?
• Which process MOST accelerates alluvial fan formation at a fault-bounded mountain front?