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← GeographyWhich outcome primarily increases inside a water-filled limestone cave during periods of lower atmospheric pressure?
A)Increased speleothem growth rate
B)Dissolved carbon dioxide concentration✓
C)Enhanced water table infiltration
D)Rate of cave ceiling collapse
💡 Explanation
Increased dissolved carbon dioxide occurs because lower atmospheric pressure reduces the gas's aqueous solubility, a process described by Henry's Law; therefore, more CO2 remains dissolved inside the cave, rather than precipitating calcite or creating structural risks at decreased CO2 partial pressures near the surface.
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