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← HistoryWhich outcome arises when seasonal temperature cycling increasingly stresses pietra dura in Mughal monuments?
A)Differential thermal expansion causes cracking✓
B)Albedo reduction increases surface temperature
C)Capillary action induces salt deposition
D)Grout oxidation increases carbonation effects
💡 Explanation
Differential thermal expansion causes cracking because different materials in pietra dura expand/contract at varied rates creating stress, therefore causing detachment, rather than uniform expansion, which keeps materials intact under load.
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