Which consequence resulted from decreasing gradient steepness during the construction of large Mesopotamian navigable canals?

💡 Explanation

Decreasing the gradient will reduce flow velocity, triggering settling of suspended sediments (silt deposition) because particle transport capacity reduces with decreasing velocity; therefore, canal maintenance is more frequent, rather than self-cleaning.

• Which consequence resulted from relying only on celestial navigation during transoceanic voyages with 18th-century ships?
• Which consequence occurs when Roman siege engines surpass a fortification's crushing limit?
• Which measurement error develops upon prolonged astrolabe use?
• Which limitation arises when using a brass astrolabe to measure stellar altitudes over decades in a coastal environment?
• Which risk increased during the construction of Roman aqueducts that supplied lead-lined pipes?
• Which structural problem increased the risk of catastrophic naval ship failures during the early ironclad era?