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← HistoryWhich risk dramatically increased during the Inca bridge construction given reliance on plant-fiber ropes?
A)Materials subject to rapid decay✓
B)Piers succumbed to hydraulic erosion
C)Cables exceeding tensile capacity
D)Anchors experiencing lithosphere deformation
💡 Explanation
Degradation was especially high because plant fibers are organic material. Thus, the primary consequence of environmental weathering via oxidation and microbial decay greatly weakened bridges, rather than sudden mechanical stress or geological shifts.
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