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During 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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