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← GeographyWhich outcome increases as groundwater acidity rises during limestone dissolution, creating sinkholes?
A)Regolith thickness decreases nearby downstream
B)Subsidence rate rises in developed areas✓
C)Soil porosity near cliffs decreases fast
D)Stream discharge increases during heavy rain
💡 Explanation
Increased water acidity accelerates limestone dissolution, expanding subsurface cavities due to chemical weathering; therefore a higher subsidence rate occurs because the ground is less stable, rather than increased flow or decreased regolith.
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