Which consequence arises if pre-Columbian stone aqueducts lack maintenance?

💡 Explanation

Decreased water flow efficiency occurs because a phenomenon called 'biofilm accumulation’; biofilm increases surface roughness and diminishes hydraulic diameter and flow. Stagnation creates blockage rather than collapsing everything, and changing temperature, therefore flow rate falls.

• Which mechanical action describes the primary contribution of torsion springs in a Roman ballista?
• Which effect limited maize yield on Andean terraces without sophisticated plows?
• Which benefit results from terraced hillside farming during the Inca empire's expansion?
• Which consequence arose when early Chinese gunpowder recipes used sulfur?
• Which consequence results if a period 1750-1820 ship's chronometer experiences sustained pendulum-effect motions?
• Which consequence results when excessive 'dip' exists when using a sextant at sea?