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← HistoryIn Aztec chinampa agriculture, which limit does seasonal flooding directly mitigate regarding crop nutrition?
A)Oxygen availability for root respiration
B)Microbial decomposition of organic matter
C)Essential soil nutrient depletion rate✓
D)Photosynthesis efficiency due to turbidity
💡 Explanation
During seasonal flooding, chinampas receive nutrient-rich sediment replenishment through deposition because floodwaters carry eroded topsoil and organic matter containing essential plant nutrients. Therefore, nutrient depletion rate is mitigated, rather than respiration, decomposition, or turbidity, which are affected by other environmental factors.
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