Which constraint impacted crop selection within Aztec chinampa agriculture around Lake Texcoco?

💡 Explanation

The salty nature of Lake Texcoco's groundwater affected chinampas, demanding salt-tolerant crops due to osmotic stress inhibiting water uptake. Therefore, groundwater salinity sensitivity limits crop selection, not predator, nutrient, or altitude constraints which feature separate limiting mechanisms.

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• Which agricultural benefit resulted when Aztec chinampas used "sunken gardens" methodology in shallow lake Texcoco?
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