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← GeographyWhich outcome results after a karst cave sediment's compaction limit is exceeded?
A)Subsidence exposes overlying sinkholes✓
B)Allochthonous sediment input increases
C)Speleothem growth rates accelerate
D)Local cave air pressure decreases
💡 Explanation
Subsidence occurs because exceeding a sediment's compaction limit initiates mechanical consolidation, reducing pore space; therefore, surface layers collapse to fill voids, creating sinkholes, rather than increasing outside sediment because the deposition factors stay constant.
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