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← HistoryWhich risk increased when Roman siege engines weakened walls?
A)Foundation instability from soil liquifaction
B)Progressive collapse via load redistribution✓
C)Thermal stress causing material fracturing
D)Electrolytic processes trigger metal corrosion
💡 Explanation
Weakened walls risk progressive collapse because the load-bearing capacity diminished via load redistribution. Therefore structural integrity degrades, rather than triggering immediate foundation settling due to soil changes, or corrosion requiring electrochemical action.
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