Which risk increased as Mesoamerican civilizations relied heavily on continuous maize cultivation with limited crop rotation?

💡 Explanation

When societies relied upon monoculture maize cultivation, reduced biodiversity occurs because limited rotation depletes specific nutrients, increasing the vulnerability agriculture systems to synchronized blight. Therefore, susceptibility to blight increased, rather than salinity, carbon levels, or methane which depend on water table elevations, biomass dynamics, different biogeochemical processes.

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• Which risk increased during the expansion of ancient Mesopotamian irrigation canals beyond natural river floodplains?
• Which outcome resulted from the controlled flooding of chinampas agriculture by the Aztecs across the Valley of Mexico?
• Which problem challenged the use of early marine chronometers aboard ships during long voyages?
• Which risk increased during transoceanic voyages in 18th-century wooden ships due to improperly sealed hull planks?