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← GeographyWhich outcome develops a tombolo formation connecting island?
A)Wave diffraction towards an island✓
B)Decreased sediment supply longshore drift
C)Increased storm surge island erosion
D)Accelerated glacial isostatic readjustment
💡 Explanation
Wave diffraction concentrates wave energy behind the island, promoting sediment deposition through wave refraction; because sediment accumulates in the sheltered area, this links the island to the mainland via sediment transport, therefore forming a tombolo, rather than erosion or other isostatic rebound.
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