Which effect decreased chinampa agricultural productivity when excessive lake level rose in Tenochtitlan?

💡 Explanation

Excessive lake level rise causes soil leaching because rising water displace nutrients. This depletes vital elements like nitrogen, impacting plant growth. Therefore, nitrogen depletion reduces productivity, rather than increased CO2, enhanced mineralization, or microorganism proliferation without soil saturation.

• Which error arises when an astrolabe's alidade is misaligned relative to the horizon ring?
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• Which outcome occurs when a Roman aqueduct's settling tank is bypassed during heavy rainfall?
• Which risk increases when supporting walls fail during pre-Columbian terracing?
• Which mechanism maximized crop yield in Aztec chinampa farming in shallow lake environments?
• Which optical effect limited early astrolabe accuracy when sighting stars near the horizon?