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Which consequence occurs in an Inca suspension bridge when cable moisture fluctuates?

A)Changing tension affects load distribution
B)Vegetation readily overgrows stone anchors
C)Earthquake susceptibility significantly increases
D)Excessive cable sag impairs deck rigidity

💡 Explanation

Changing tension alters load distribution because cyclic humidity affects fiber length, altering force balance; the dynamic relaxation mechanism undermines tension. This redistribution weakens stability therefore, rather than vegetation issues or seismic vulnerability if moisture content remains static throughout its period.

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