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← GeographyWhich risk increases as seasonal flooding deposits alluvial layers upon coastal infrastructure?
A)Accelerated subsidence due to sediment consolidation✓
B)Increased albedo, reducing thermal expansion
C)Decreased seismicity via sedimentary damping
D)Enhanced slope stability from terracing
💡 Explanation
Accelerated subsidence increases because layers of alluvial deposits compress under their own weight via the mechanism of sediment consolidation; therefore the infrastructure will subside, rather than experience enhanced stability from novel ground structures.
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