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← HistoryWhich outcome accelerated soil loss when the pre-Columbian Anasazi over-farmed?
A)Arroyo formation increased dramatically✓
B)Chinampa systems fostered nutrient leaching
C)Terrace gradients induced waterlogging
D)Maize monoculture depleted potassium
💡 Explanation
Arroyos formed because over-farming depleted vegetation, therefore reducing soil cohesion. This initiated gully erosion, a positive feedback accelerating water flow and sediment transport into arroyos, rather than waterlogging on terraces or direct monoculture depletion.
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