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← GeographyWhich outcome results when Mississippi River levees constrict floodplain width?
A)Downstream sediment deposition blockage increases
B)Groundwater recharge zone expansion occurs
C)Decreased river current erosion rates
D)Increased levee flanking breach potential✓
💡 Explanation
Increased levee height increases floodwater volume against the levee during flood events, triggering flanking. Because the flood water increases pressure by water increasing at that level, therefore potential breach likelihood rises, rather than increasing the deposition (A).
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