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← HistoryWhich outcome accelerates soil erosion on ancient terrace farms when intense rainfall exceeds design capacity?
A)Decreased crop nutrient availability
B)Terrace wall structural collapse✓
C)Improved water infiltration rates
D)Increased photosynthetic efficiency
💡 Explanation
Terrace wall failure occurs because the hydrostatic pressure rises; if rainfall exceeds design capacity, pressure from saturated soil increases leading to structural overloading. This causes collapse, therefore erosion accelerates, due to missing support rather than just nutrient losses.
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