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← HistoryWhich risk was elevated during Inca stone masonry because irregular stones were fitted without mortar?
A)Increased seismic vulnerability✓
B)Reduced material thermal expansion
C)Decreased internal resonant frequency
D)Increased structure fire resistance
💡 Explanation
Inca masonry relied on precise stone shaping utilizing high friction, so interlock failure from earthquakes increased structural instability because stone INTERLOCKING reduced independent movements; therefore, increased seismic vulnerability, rather than thermal, resonant, or fire effects, predominates until failure.
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