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← GeographyWhich outcome results when a barrier island's longshore drift is interrupted?
A)Sediment deposition increases rapidly✓
B)Salinity intrusion decreases landward
C)Lagoon biodiversity always increases notably
D)Nutrient supply to marshes stabilizes
💡 Explanation
Interrupted longshore drift patterns stop the sediment transport and increase deposition proximal to the obstruction because sediment accumulation happens, causing rapid accretion, rather than uniform beach nourishment that sustains broader ecosystems; therefore increased deposition results.
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