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← HistoryWhich outcome occurred when the hydraulic gradient exceeded terrace wall limits in Inca agriculture?
A)Slope destabilization from water saturation✓
B)Nutrient depletion via topsoil runoff
C)Crop dehydration due to diminished flow
D)Salt accumulation inhibiting germination
💡 Explanation
When wall limits were exceeded, hydrostatic pressure built up, exceeding slope stability because soil shear strength decreased with elevated water content, promoting landslides. Therefore slope destabilization occurred, rather than nutrient depletion, dehydration or salt accumulation which require entirely different mechanisms of water transport.
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