In ancient Mesopotamian gravity-fed irrigation, which outcome resulted when sediment overload impaired the 'weir' gates regulating flow?

💡 Explanation

Increased downstream soil salinity arose because excessive sediment deposition overwhelmed the watercourse's transport capacity via reduced flow due to deposition caused by sediment overload; therefore salinity increased, rather than improving navigation depth.

• Which mathematical result was enabled by the algebraic concept of 'al-jabr' (restoring) in medieval Islamic problem-solving?
• Which error increases when using an 18th-century sextant on a rolling ship far from shore at night?
• Which risk increased when early steam engines exhausted directly into the atmosphere?
• Which outcome arises when repeated rapid firing overheats a repeating crossbow's bronze arrow magazine in Han Dynasty?
• Which process improvement resulted during the Han Dynasty when early bloomeries struggled with iron implements?
• Which outcome resulted from the innovation of the Darby process in 18thC cast iron production?