Which consequence arises when poorly designed Inca terracing experiences intense rainfall?

💡 Explanation

Soil collapse occurs because increased saturation triggers slope instability via increased pore water pressure; this reduces the effective stress holding the soil together. Therefore, terraces fail catastrophically, rather than experiencing gradual erosion given functional drainage.

• Which consequence resulted from the quenching process during mass production of medieval Chinese crossbow trigger mechanisms?
• Which material degradation accelerates when using travertine in Roman aqueducts?
• Which instability risk increased in Roman ballistae when using lower-density projectile stones during sieges?
• Which outcome occurred when cast iron bridge designs exceeded material tensile strength limits in the 19th century?
• Which crucial risk threatened Mesopotamian bronze sickle integrity after annealing?
• Which outcome results when Roman roads traverse unstable subsoil?