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← HistoryWhich engineering risk increased during Aztec chinampa construction?
A)Rising water table contamination✓
B)Decreased soil nutrient erosion
C)Increased avian pest abundance
D)Declining maize crop diversity
💡 Explanation
Building chinampas affected groundwater flow, because hydraulic conductivity increased within the island beds. Therefore, pollutants accumulated rather than dispersing, increasing the risk during wet seasons compared to drier terrace farmland.
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