Which outcome results when thawing permafrost collapses roads?

💡 Explanation

Solifluction increases slope instability because thawing permafrost creates a saturated, unstable active layer that flows downslope. This causes road collapse due to loss of support, therefore slope instability dominates, rather than material breakdown or common erosion.

• Which topographical outcome occurs when seasonal flooding deposits sediment atop an alluvial fan?
• Which process limits cirque glacier downcutting rates significantly?
• Which risk drastically increases when heavy rainfall saturates the soil near a river levee structure?
• Which geological hazard is amplified when permafrost underneath pipeline infrastructure thaws?
• Which mechanism redistributes surface pollutants when plastic debris concentrates within an oceanic gyre?
• Which mechanism explains warmer temperatures alongside poleward-flowing ocean streams, such as the Gulf Stream?