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← GeographyWhich risk increases around cave stalactites due to localized saturation?
A)Carbonate recrystallization accelerates the fracturing✓
B)Evaporation rates increase speleothem density
C)Gravity-driven water film minimizes growth
D)Continued percolation erodes unstable foundation
💡 Explanation
Carbonate recrystallization increases when thin water film becomes supersaturated; a mechanism called Ostwald ripening causes smaller particles to dissolve and precipitate onto larger crystals. Because the crystals are rapidly assembling, it introduces microfractures; therefore instability increases rather than decreasing evaporation.
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