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Which outcome occurs when pre-Columbian terraced hillside irrigation exceeds capacity?

A)Topsoil loss and reduced fertility
B)Uniform nutrient distribution improvement occurs
C)Decreased water infiltration is observed
D)Increased plant root aeration results from runoff

💡 Explanation

Topsoil loss happens because hillside terracing relies on soil structure to absorb the flow. Saturated beyond capacity means increased hydrostatic pressure overcomes soil cohesion—leading to landslides rather than retaining soil; therefore accelerating erosion.

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