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← GeographyWhich outcome occurs when increased wave energy impacts a coastal barrier island?
A)Island system experiences landward migration✓
B)Significant increase in clathrate formation
C)Subduction zone size begins to expand
D)Island volcanic activity becomes more predictable
💡 Explanation
Increased wave energy causes coastal erosion, driving sediment transport via **longshore drift**. This sediment redistribution results in island rollover because sediment is moved from the ocean side to the lagoon side, therefore barrier islands migrate landward, rather than developing volcanism.
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