Which risk increases when intense rainfall saturates alluvial fan deposits?

💡 Explanation

Debris flow channel avulsion risk increases because intense saturation reduces the shear strength; this initiates debris flow caused by gravity-driven sediment transport, rather than slower erosion; therefore channel positions shift rapidly.

• Which soil outcome results when differential weathering occurs?
• Which large-scale climate effect is mitigated by the formation of oceanic gyres concentrating floating plastics?
• Which outcome develops when sediment supply exceeds transport capacity on a rapidly subsiding basin with proximal mountain uplift forming a braided stream?
• Which outcome is directly amplified when decreased Arctic ice cover reduces the Earth's albedo?
• Which mechanism concentrates buoyant Sargassum seaweed rafts within ocean gyres?
• Which outcome results when rapid river levee aggradation slows?