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← GeographyWhich outcome occurs when elevated carbon dioxide saturates karst aquifers?
A)Accelerated stalactite and stalagmite formation✓
B)Increased seismic activity along fault lines
C)Depletion of dissolved iron concentration
D)Enhanced rate of sandstone weathering
💡 Explanation
Increased CO2 enhances dissolution because it forms carbonic acid, facilitating calcite precipitation to form stalactites via chemical precipitation, rather than preventing their dissolution. Therefore, stalactite formation accelerates; rather than other geochemical or geophysical changes.
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