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← GeographyWhich outcome accelerates coastal erosion when streams carrying sediment are dammed?
A)Reduced sediment deposition offshore✓
B)Decreased wave diffraction patterns
C)Stronger estuarine salt stratification
D)Increased bluff stabilization forces
💡 Explanation
Reduced sediment supplied to the coast occurs because sediment trapping behind the dam prevents depositional equilibrium; therefore, wave action erodes beaches and cliffs rather than replenishing them, causing increased coastal erosion, rather than bluff stabilizations.
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