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← HistoryWithin Aztec chinampa agriculture, which risk increased when dense maize planting reduced sunlight?
A)Ammonia volatilization increases rapidly
B)Bacterial nitrogen fixation diminishes greatly
C)Evapotranspiration demand rises significantly
D)Photorespiration in maize increases sharply✓
💡 Explanation
When densely planted maize reduces sunlight in chinampas, increased photorespiration occurs because RuBisCO cannot fix CO2 efficiently. Thus, a significant energy waste emerges as photorespiration exceeds photosynthesis, rather than optimizing nutrient cycling or water use.
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