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← GeographyWhich outcome occurs when storm surge overtops barrier islands?
A)Increased lagoon salinity and backshore erosion✓
B)Enhanced offshore sediment deposition only
C)Stabilized shoreline due to wave reflection
D)Reduced tidal prism within protected bays
💡 Explanation
Overwash transports sediment landward during storm surge via **sediment transport**, inundating lagoons and increasing salinity while causing backshore erosion because sediment distribution onshore increases, thereby altering the island profile, rather than stable protection or sediment deposition only.
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