Which risk increased when Mesopotamian canals were built without sufficient sediment traps?

💡 Explanation

When canals lack sediment traps, silt accumulates in the field, raising the water table facilitating capillary action, this draws salts to the surface increasing land salinity. Therefore soil salinity increases, rather than weed growth, wall collapse, or pirate attacks each from drastically different or unrelated canal deficiencies.

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