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← GeographyWhich outcome occurs when dynamic pressure increases along a section of a barrier island coastline?
A)Increased sediment transport offshore✓
B)Enhanced shoreline stability inland
C)Decreased dune erosion mitigation
D)Reduced lagoonal salinity intrusion
💡 Explanation
Increased dynamic pressure nearshore elevates wave energy, causing greater turbulence and shear stress. This accelerates bed erosion via increased sediment load transport, because turbulent flow entrains more particles. Therefore, rapid sediment removal dominates, rather than accretion or stabilization behind the barrier.
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