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← GeographyWhich outcome occurs when carbonic acid saturation decreases in karst?
A)Calcite precipitation increases on surfaces✓
B)Sinkhole formation rate accelerates exponentially
C)Cave system development reaches equilibrium
D)Underground stream flow rates markedly increase
💡 Explanation
Calcite precipitation increases because reduced carbonic acid lowers solubility, shifting the equilibrium away from dissolution. Therefore, mineral deposition occurs, rather than increased karst erosion because dissolution is balanced with precipitation.
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