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← GeographyWhich outcome results when increased atmospheric carbon concentration affects stalactite formation in limestone caves?
A)Decreased calcium carbonate deposition rates✓
B)Increased cave air ventilation overall
C)Faster flowstone growth on cave floors
D)Enhanced iron oxide precipitation effects
💡 Explanation
Decreased calcium carbonate deposition occurs because increasing atmospheric carbon creates carbonic acid enrichment of rainfall. Enhanced acidity causes dissolution of surface limestone (less CaCO3 available), therefore reducing stalactite growth, rather than the floor receiving more deposits during deposition.
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