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← HistoryIn Mughal-era pietra dura with sandstone base, which structural outcome arises when excessive water penetrates the marble inlay?
A)Marble cracks due to freeze-thaw
B)Sandstone disintegrates from salt dilation
C)Inlay detaches due to adhesive failure✓
D)Iron pyrite oxidation stains surface
💡 Explanation
Water ingress accelerates adhesive failure because it dissolves the lime-based mortar attaching the marble, and the differential thermal expansion induces stresses. Therefore, loss of adhesion is the primary outcome, rather than bulk material cracking.
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