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← HistoryWhich material degradation risk increases the most when seasonal temperature fluctuations affect the limestone substrate beneath pietra dura inlay?
A)Differential thermal expansion✓
B)Galvanic corrosion of metals
C)Erosion from acid rainfall
D)Oxidative breakdown of pigments
💡 Explanation
Differential thermal expansion causes stresses at the interface because limestone and inlay materials expand/contract at different rates with heat, predisposing to cracking; therefore, option A is correct, rather than B/C/D which happen over different timescales.
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