Which outcome results when a levee's soil lacks compaction?

💡 Explanation

Increased flood risk occurs because a permeability increase through the levee matrix happens due to decreased soil density; this is differential head loss. Therefore, more water infiltrates, rather than remaining contained, because internal erosion is initiated.

• Which mechanism disrupts deep ocean nutrient circulation after a large freshwater influx from glacial melt?
• Which mechanism causes tsunami wave amplification as earthquake-generated wave approaches shallower coastal water?
• Which risk increases when excessive irrigation is applied to an alluvial plain with poor drainage?
• Which outcome occurs when upper tropospheric winds accelerate due to temperature differences across Hadley cell boundaries?
• Which process initiates oxbow lake formation when a river's channel migrates laterally?
• Which process primarily causes levee failure during prolonged heavy rainfall events?