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← GeographyNear a barrier island system, which sediment outcome occurs when wave energy reduces at a tidal inlet?
A)Ebb tidal delta grows seaward✓
B)Longshore current velocity increases
C)Back-barrier marsh develops rapidly
D)Ocean salinity near island increases
💡 Explanation
Ebb tidal deltas grow because reduced wave energy at an inlet causes sediment deposition driven by tidal currents, a process called tidal prism exchange; therefore deltas expand seaward, rather than either faster marsh development or longshore changes, which require different conditions.
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