Which risk increased during Uruk period Mesopotamian irrigation system expansions with increased canal length?

💡 Explanation

When Mesopotamian irrigation canals increased in length, higher evaporation rates drew salts to the surface due to capillary action because the climate was arid, causing elevated salinity. Therefore soil salinization risk increased, rather than silt deposition, flood surge, or overextraction which are influenced by different hydrological factors and canal geometry.

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