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← GeographyWhich coastal outcome is accelerated when seawall toe scour occurs?
A)Increased sediment transport to inlets
B)Landward migration of barrier islands✓
C)Stabilization of existing sand dunes
D)Development of offshore submarine canyons
💡 Explanation
Landward migration increases because the seawall-induced turbulence enhances Sediment Entrainment accelerates bed erosion at the structure's base; therefore undermining the seawall and shifting the barrier island rather than allowing dune stabilization.
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