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← GeographyWhich outcome develops when a coastal region's natural sediment bypass weakens?
A)Accretion decreases down-drift areas.✓
B)Wave refraction decreases nearby.
C)Salinity intrusion diminishes upstream.
D)Upwelling intensity reduces locally.
💡 Explanation
Sediment bypass sustains down-drift sediment supply; when reduced, longshore drift causes deprivation because sediment accumulates up-drift. Therefore, accretion decreases down-drift rather than other mechanisms relating to salinity, wave refraction, or upwelling intensity.
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