Which risk increased during medieval sieges when concentrated trebuchet fire weakened castle walls?

💡 Explanation

Undermining was enabled because concentrated trebuchet fire caused localized wall weakening, triggering foundation settling via soil MECHANISM; therefore undermining became easier, rather than other issues dependent on position and engagement of defenders.

• Which risk increases when an inadequately designed Pre-Columbian terrace wall experiences prolonged saturation during heavy rainfall?
• Which consequence occurred when historical shipbuilders exceeded ship draft limits?
• Which risk increased when early maize agriculture expanded onto steeper terrain?
• When constructing pre-Columbian chinampas, which consequence resulted from unchecked eutrophication?
• Which outcome arises as terraced rice paddies saturate?
• Which structural vulnerability appeared earliest in Roman castra fortifications utilizing a vallum with timber palisade construction?