Which risk increases when Inca agricultural terraces experience excessive rainfall on steep slopes?

💡 Explanation

When terraces receive excessive rainfall, hydraulic erosion occurs because the water runoff exceeds the soil's infiltration capacity eroding away the fertile topsoil from the terraces. Therefore topsoil loss occurs, rather than nutrient leaching, pest infestations, or decreased sunlight which arise through different processes.

• Which navigational error increases when using a corroded brass astrolabe at sea?
• Which corrosion mechanism accelerated failure of early Mesopotamian bronze agricultural tools in alkaline soil?
• Which optical phenomenon did Alhazen (Ibn al-Haytham) primarily investigate to refine lens design during the Islamic Golden Age?
• Which outcome accelerated soil degradation in some pre-Columbian Andean terrace farming systems?
• Which optical consequence explains the limited resolution observed in Ibn al-Haytham's early lens experiments?
• Which mechanical effect most directly improved navigational accuracy when John Harrison's marine chronometer experienced fluctuating temperatures?