Which outcome arose in ancient Sumer when irrigation canal silt buildup exceeded dredging capacity?

💡 Explanation

Diminished crop yields occurred downstream because excessive silt accumulation beyond managed dredging caused upstream water diversion via hydraulic resistance, therefore reducing water availability for lower fields rather than impacting trade, structures, or metallurgy.

• Which mechanism critically limited the ziggurat's overall elevated height?
• Which outcome occurred in Byzantine diplomacy when emissaries presented distorted perspectives?
• Which challenge was addressed when creating early cast iron plows in 18th-century America?
• Which outcome occurs when improperly aligned astrolabe plates undergo thermal expansion?
• Which risk increases when inadequately anchored pontoon bridges experience strong river currents?
• Which risk accelerated during construction of Hagia Sophia's dome around 537 AD?