Which limiting factor constrained large-scale chinampa cultivation surrounding Tenochtitlan?

💡 Explanation

When organic matter accumulated in chinampas, decomposition rates limited land restoration, since the microbial activity breaking down plant waste required suitable temperature and moisture, slowing soil creation. Therefore the decomposition rate becomes a limiting factor, rather than flooding, labor, or nutrient depletion, which could be more readily managed through existing technology.

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• Which vulnerability led to breaches in Roman siege towers if defenders ignited flammable materials at their base?
• Which risk increases when bronze-age metal casters rapidly cool a freshly cast bronze axe head?
• Which risk increases during a prolonged siege if Roman legionaries fail to properly waterproof timber siege towers?
• Which risk intensified during prolonged Roman sieges when defenders used scorpions (torsion siege engines)?