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← HistoryWhich long-term degradation becomes prominent when water interacts with pietra dura inlay within unsealed Mughal-era structures?
A)Differential thermal bridge formation
B)Salt efflorescence induced spalling✓
C)Seismic resonance amplification
D)Bacterial biofilm etch progression
💡 Explanation
Salt efflorescence-induced spalling occurs, because capillary action draws groundwater containing dissolved salts into porous stones; crystallization pressure then causes surface flaking. Therefore, spalling is accelerated, rather than thermal or seismic effects, within the inlay's complex mineral matrix.
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