Which outcome is more likely when floodplain levees subside unevenly?

💡 Explanation

Channel avulsion likelihood increases with irregular levee subsidence because avulsion, a cut-off whereby the river abandons its channel for a steeper and more direct course downslope, is more probable where the existing channels are compromised by areas of lower bank elevation, rather than if gradient is uniform.

• Which mechanism amplifies solifluction rates when shallow-rooted vegetation is removed from arctic tundra slopes?
• Which outcome increases erosion in karst regions because of accelerated chemical weathering?
• Which outcome occurs when coastal upwelling is significantly reduced due to decreased wind stress?
• Which outcome occurs in an estuarine delta when freshwater stream flow diminishes significantly?
• Which crustal deformation results along a transform plate boundary within continental crust?
• On a sloping terrain underlain by permafrost, which landform results primarily due to extensive solifluction?