Which consequence occurred when the early Chinese substituted cast iron for bronze in agricultural tools?

💡 Explanation

Cast iron has high carbon content; therefore, increasing hardness, but also increasing brittleness. The *graphitic precipitation* renders it susceptible to fracture under impact, rather than deforming like the bronze tools it replaced in early agricultural implements, because of bronze's capacity for plastic deformation.

• Which outcome results when terrace construction destabilizes during Incan road building?
• Which outcome directly increased agricultural yields from ancient chinampas?
• During siege warfare, which outcome increased when bronze siege towers exceeded certain heights?
• Which condition leads to increased risk when lime mortar joints exist between Inca masonry blocks?
• Which outcome directly resulted from optimizing hydraulic terracing systems by the Inca civilization?
• Which problem plagued early aqueduct-fed chinampa agriculture in Tenochtitlan?