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Which consequence results if terrace construction fails during flood irrigation in early Andean civilizations?

A)Nutrient leaching from upper terraces
B)Uniform water distribution achieved easily
C)Enhanced slope stability temporarily exists
D)Increased biodiversity spontaneously appears

💡 Explanation

Terrace failure leads to nutrient leaching because sheet erosion removes topsoil rich in inorganic and organic compounds from the upper terraces; therefore, soil fertility degrades, rather than improving slope stability, which would require retaining walls or level planting.

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