Which issue resulted when early chinampa agriculture over-extended canals?

💡 Explanation

Anaerobic acidification prevailed because stagnant water promoted **sulfate reduction**, therefore generating sulfuric acid that lowered the pH. This occurred rather than nitrogen increase (requiring oxygen) nor windbreak effects that depend on a drier landscape.

• Oxidation affected the Iron Pillar of Delhi, leading to which unexpected outcome?
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• During Roman road construction, which risk increased from inadequate subsurface drainage?
• Which risk increased for opposing siege forces during the Punic Wars after the Romans adopted 'opus africanum' in their fortifications?
• Which adjustment was essential for marine chronometers to maintain accurate time within long voyages across the fluctuating temperatures?
• Within early Byzantine silk mills, which consequence occurred with decreased humidity?