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← GeographyWhich outcome results when rainwater interacts excessively with karst caves?
A)Accelerated CO2 absorption by stalactites
B)Increased speleothem dissolution and cave widening✓
C)Decreased mineral precipitation rates internally
D)Enhanced cave ecosystem photosynthetic productivity
💡 Explanation
Increased rainwater in caves leads to greater carbonic acid formation, therefore calcium carbonate dissolution occurs because the chemical weathering mechanism exceeds precipitation equilibrium, widening passages, rather than spurring mineral deposition or photosynthesis.
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