Which risk increases for early water canals that lacked periodic dredging?

💡 Explanation

Reduced conveyance capacity arises from sedimentation because sediment accumulation obstructs flow, decreasing effective cross-sectional area; this process is deposition, rather than sediment-dispersion; therefore reduced capacity results from sedimentation, rather than other structural damages.

• Which outcome followed the deforestation of Rapa Nui slopes?
• Which risk increases when Roman siege catapults use wet ropes during prolonged sieges?
• Which mechanical failure increased when cast iron crossbow trigger mechanisms experienced cold winter temperatures?
• Which mechanism explains why timbers in 18th-century ship hulls, saturated during construction, experienced reduced long-term structural integrity if quickly dried?
• Which consequence arises when sextant mirrors in 18th century naval navigation instruments undergo thermal distortion during sunny daytime oceanic voyages?
• Which accuracy risk rises inside Harrison's marine chronometer mechanism when subjected high humidity?