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← HistoryDuring the construction of Inca suspension bridges, which increased risk occurred when ichu grass ropes suffered prolonged dampness?
A)Accelerated rope fiber degradation✓
B)Increased bridge deck vibrations
C)Decreased material tensile strength
D)Greater anchoring stone instability
💡 Explanation
Dampness on ichu grass promoted fungal Decomposition, which led to accelerated rope fiber degradation as a result of biological mechanisms. This happened because plant cellulose hydrolysis breaks cellulose chains. Therefore, higher tensile strength ropes were crucial, rather than vibrational stability or anchor stability being primary concerns.
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