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← HistoryWhich mechanism limits long-term integrity inside Mughal pietra dura?
A)Galvanic corrosion between dissimilar materials✓
B)Hygroscopic expansion from gypsum content
C)Capillary action causing salt efflorescence
D)Thermal shocking creating micro-fractures
💡 Explanation
Galvanic corrosion causes decay because dissimilar metals (used for inlay) in the presence of moisture form an electrochemical cell, therefore, the metal corrodes rather than remaining inert like the stone, causing inlay to loosen.
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