Which degradation process limits the lifespan of ornate mosaic pietra dura in Mughal monuments when subject to fluctuating temperature and humidity?

💡 Explanation

Differential expansion, because different materials expand at mismatched rates during temperate shifts, initiates stress cracking. The inlay detaches because its constraint yields to the cumulative stress and adhesive bond failure. Therefore thermal expansion risks structural compromise, rather than embrittlement, galvanic corrosion, or condensation within internal spaces.

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