Which effect increases when vegetation is removed from a reinforced levee system along a major river?

💡 Explanation

When vegetation is removed, the soil loses root reinforcement, increasing pore water pressure during floods because hydraulic gradients increase shear stress along the levee slope causing destabilization. Therefore, slope instability risk heightened, rather than sediment deposition, soil drying, or increased crest stability which require vegetation or alternative slope protection.

• Which outcome occurs when deep-sea trench sediment prevents rupture propagation?
• Which outcome occurs when geothermal plant injection increases?
• Which landform outcome results after prolonged carbonic acid exposure?
• Which mechanism causes mass wasting on steep slopes underlain by thawing permafrost?
• Which primary erosional process initially shapes the V-shaped valley that develops into an alluvial fan system?
• Which mechanism causes increased stream meandering in a region experiencing decreased vegetation density?