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← HistoryWhich outcome resulted from the Aztecs constructing chinampas in the Valley of Mexico's lake system?
A)Increased soil salinity via evaporation
B)Enhanced nitrogen fixation by aquatics✓
C)Decreased biodiversity due to crop monoculture
D)Reduced flood risk via water diversion
💡 Explanation
When Aztecs constructed chinampas, floating gardens encouraged high nutrient levels mainly through aquatic plant root contribution, and the unique micro-environment around the raised beds enhanced nitrogen fixation done by aquatic microorganisms. Therefore enhanced nitrition fixation came naturally, rather than other outcomes and failure mechanisms.
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