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← GeographyWhich coastal outcome results when a headland erodes differentially because of rock resistance variation?
A)Development of barrier islands✓
B)Formation of seacliffs directly
C)Creation of a tombolo feature
D)Acceleration of fluvial sediment deposition
💡 Explanation
Barrier island formation occurs because wave refraction focuses energy on weaker rock outcrops enhancing **erosion**. This sediment then migrates, forming offshore islands. This barrier effect is concentrated near the headland region, therefore barrier islands occur, rather than seacliffs formed by uniform retreat.
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