Which outcome reduces the longevity of a shaduf irrigation system in ancient Egypt?

💡 Explanation

When rope fibers repeatedly bend over a fulcrum, fretting fatigue causes microscopic cracks to develop due to friction, weakening the rope and ultimately leading to breakage. Therefore, fatigue failure results, rather than silting, corrosion, or deformation, which involve different environmental or biological degradation mechanisms.

• Which environmental constraint primarily limited the expansion of chinampa agriculture in the Valley of Mexico during pre-Columbian times?
• Which outcome occurs when ancient terrace systems cultivating maize experience prolonged heavy rainfall?
• Which structural issue was addressed by the bent-axis approach in Mesopotamian ziggurat construction?
• Which limitation constrained practical surveying using al-Khwarizmi's algebraic techniques during the 9th century?
• Which outcome resulted from cyclical tin depletion in late Bronze Age metallurgy?
• Which structural problem likely occurred in ziggurats as water evaporated from mud brick cores?