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← GeographyWhich risk increases when rapid cave ventilation lowers carbon dioxide levels near actively forming stalactites?
A)Decreased calcite deposition rates✓
B)Accelerated iron oxide sedimentation
C)Enhanced aragonite crystallization rates
D)Increased sulfate mineral precipitation
💡 Explanation
Decreased calcite deposition occurs because the mechanism of CO2 degassing from water shifts the carbonate equilibrium, lowering the supersaturation index. Therefore, deposition slows, rather than accelerating changes related to other ionic species or minerals.
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