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Following repetitive seasonal floods on engineered levees, which geomorphic outcome will compaction cause?

A)Increased floodwater sedimentation downstream
B)Accelerated levee crest subsidence
C)Diminished channel sinuosity locally
D)Enhanced lateral channel migration rates

💡 Explanation

Compaction increases soil density, subsequently causing levee crest subsidence because pore spaces reduce under constant inundation. Therefore the levee sinks, rather than lateral migration evolving, due to altered internal structure rather than channel-driven forces.

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