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← HistoryWhich outcome related to crop density results when terrace farming uses insufficient drainage channels on steep Inca hillsides?
A)Soil erosion increases significantly downgrade✓
B)Nitrogen fixation improves in the subsoil
C)Desiccation reduces root fungal viability
D)Photosynthesis increases photosynthetic efficiency
💡 Explanation
Increased soil erosion results when terrace drainage is insufficient. The excessive runoff overwhelms the Shear Strength of the soil, because water accumulates, therefore the soil destabilizes. Insufficient terrace design allows erosion, rather than directing water across or away from fields.
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