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← HistoryWhich outcome results when ancient Inca terrace construction experiences prolonged saturation?
A)Increased risk of terrace collapse✓
B)Enhanced crop yield for quinoa
C)Accelerated nutrient uptake by plants
D)Reduced soil erosion from heavy winds
💡 Explanation
Increased risk occurs because prolonged saturation increases pore water pressure, triggering slope instability, which induces soil failure due to reduced effective stress. This earthflow process causes landslides and terrace collapse is more likely, rather than crops improvement.
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