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Which risk dramatically increased when limestone was exposed to acidic runoff from early industrial coal mines?

A)Increased material thermal conductivity
B)Accelerated structural biofouling
C)Pronounced chemical carbonate dissolution
D)Significant crystal lattice embrittlement

💡 Explanation

Pronounced chemical carbonate dissolution increases when the limestone reacts with acid drainage, because hydrogen ions break down the calcium carbonate matrix. Therefore, structural integrity diminishes, rather than a change in some other unrelated material property.

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