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← HistoryWhich increased risk affected Inca terracing during earthquakes?
A)Liquefaction-induced slope instability✓
B)Brittle fracture in terrace walls
C)Oxidation rates causing rock decay
D)Thermal expansion stresses buildup
💡 Explanation
Liquefaction-induced slope instability increases significantly during seismic events in terraced landscapes, because the saturation of terrace fill material leads to reduced shear strength, therefore causing landslides, rather than simple surface displacements alone.
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