During Aztec chinampa construction, which risk increased when consolidating artificial islands?

💡 Explanation

Increased hydrostatic pressure compacts the soil and reduces oxygen diffusion thereby shifting the decomposition mechanism to anaerobic pathways because oxygen diffusion is limited. Anaerobic decomposition releases methane rather than CO2, producing different greenhouse gas contributions.

• Which outcome commonly occurred when early chinampa farmers did not implement proper 'closing' methods?
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