Which outcome develops when longshore drift overwhelms dune stabilization on a barrier island?

A)Island overwash and landward migration✓

B)Increased rates of coastal upwelling

C)Formation of coastal ice sheets

D)Reduced rates of isostatic rebound

💡 Explanation

Island overwash occurs because sediment supply overwhelms the island's capacity to absorb it via aeolian transport and vegetation; therefore, the island migrates landward rather than remaining stable like atolls with balanced sediment budgets.

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Which outcome develops when longshore drift overwhelms dune stabilization on a barrier island?

💡 Explanation

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