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← GeographyAlong a sediment-rich coastline, which consequence arises from human intervention that disrupts longshore drift?
A)Increased erosion up-drift of structures✓
B)Decreased salinity in nearby estuaries
C)Enhanced coral reef development offshore
D)Reduced seismic activity along fault lines
💡 Explanation
Disruption of longshore drift by structures like groins or jetties causes sediment starvation down-drift; because sediment accumulation stops, increased erosion happens up-drift rather than enhanced deposition. Therefore, only option A is correct, rather than altered salinity or coral growth.
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