Which limitation primarily governed the path of early Mesopotamian canals?

💡 Explanation

Canals relied upon gravity for distributing irrigation water. The downslope water flow constraint limited placement choices, because elevation drops facilitated drainage from river to field, rather than locations requiring costly pumps.

• Which limitation constrained practical solutions derived from Al-Khwarizmi's quadratic equations in land surveying?
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• Which tactical consequence directly resulted from Roman ballistae limitations?
• Which consequence resulted from thermal expansion during navigation when using early 18th-century brass sextants?
• Which outcome results when inefficient quenching follows casting wrought iron objects?
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