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← HistoryWhich outcome occurs when the ziggurat core settles unevenly?
A)Increased compressive stress on substructure
B)External facade bulging and cracking✓
C)Faster evaporation and salt weathering
D)Reduced rainwater runoff erosion damage
💡 Explanation
Bulging and cracking happens because differential settlement induces tensile stress exceeding the clay brick mortar's yield strength, causing facade deformation. Undermining the facade through material separation happens, rather than direct compression. Therefore, option B is correct.
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