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← HistoryWhich stability risk increases when the clay bricks of a ziggurat experience prolonged ground saturation?
A)Structural shift from differential settling✓
B)Seismic vulnerability from mass increase
C)Wind load instability from friction reduction
D)Facade cracking due to thermal expansion
💡 Explanation
When clay bricks saturate, consolidation occurs because increased water content reduces shear strength unevenly within the ziggurat's foundation, leading to differential settling. Therefore, structural shift occurs, rather than changes seismic or wind vulnerability, or cracking from internal expansion coefficients.
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