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← GeographyWhich outcome occurs when excessive groundwater extraction destabilizes coastal aquifers?
A)Increased saltwater intrusion into aquifers✓
B)Decreased fluvial sediment deposition rates
C)Accelerated chemical weathering of bedrock
D)Diminished amplitude of tidal fluctuations
💡 Explanation
Increased saltwater intrusion occurs through aquifer compaction because, as fresh water is removed, pore pressure decreases, therefore accelerating subsidence and allowing saltwater to replace the fresh; rather than weathering or tide changes.
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