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← HistoryOn steep slopes, which outcome results from the interruption of agricultural terracing during intense rainfall?
A)Increased soil erosion and landslides✓
B)Enhanced nutrient retention in soil
C)Improved slope stability long term
D)Decreased water runoff volume overall
💡 Explanation
Lack of terracing exacerbates erosion because surface runoff concentrates downslope (increased shear stress), causing slope failure through hydraulic action. Intense rainfall generates higher overland flow, therefore rapid sediment transport occurs rather than slope stabilization provided by intact terraces.
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