Which benefit results from the practice of regularly 'silt-layering' in chinampa agriculture?

💡 Explanation

When new silt is added, nutrient replenishment occurs because chinampas use lake sediments for fertility leading to sustained high yields. Therefore nutrient replenishment from lake sediments results, rather than pest reduction, erosion control, or water purification, which operate via completely different mechanisms.

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• Which consequence results when a wooden ship's copper sheathing detaches below the waterline?
• Which outcome arises from the restricted airflow during unsealing ancient Greek Fire?
• Which risk increases if a Roman aqueduct's settling tank's capacity is overwhelmed during intense rainfall?
• Which risk increased during ziggurat construction, when masons layered sun-baked bricks without proper mortar bonding?