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← GeographyWhich geological change occurs during increased karst carbonation?
A)Enhanced speleothem formation rate✓
B)Decreased dissolution of bedrock
C)Reduced fracture network expansion
D)Lower hydraulic conductivity within rock
💡 Explanation
Speleothem (stalactite) formation rates increase as karst develops due to dissolution. Rainwater absorbs carbon dioxide, forming carbonic acid that dissolves limestone via the carbonation reaction, therefore increasing both bedrock dissolution forming caves and speleothem formation, rather than decreasing either process.
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