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Which 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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