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← GeographyWhich outcome affects cave stalactite formation when increased rainfall reduces water velocity?
A)Increased calcite supersaturation near dripping points
B)Reduced ion transport needed crystal elongation✓
C)Enhanced CO2 availability for bicarbonate formation
D)Decreased water acidity promoting faster reactions
💡 Explanation
Slower flow reduces the rate of ion replenishment for crystal growth because the mechanism of advection slows the transport of calcium and carbonate ions to the stalactite tip; therefore growth is limited rather than enhanced, because the availability of reactants determines the growth rate.
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