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Which consequence results when excessive nutrients leach from Incan terrace farms?

A)Increased downstream aquatic biomass
B)Soil erosion up-slope accelerates
C)Decreased crop drought resilience
D)Reduced nitrogen fixation rates

💡 Explanation

Increased downstream aquatic biomass results because agricultural runoff leads to nutrient enrichment, triggering algal blooms via eutrophication. These blooms reduce oxygen levels; therefore, biomass increases due to algal production, rather than nitrogen depletion or soil degradation.

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