Which soil degradation outcome arises when pre-Columbian terrace farming lacks contour plowing optimization when cultivating maize?

💡 Explanation

When terrace farms lack optimized contour plowing, water runoff accelerates soil erosion because gravitational forces overwhelm the soil structure, leading to topsoil depletion. Therefore loss on slopes results, rather than nitrogen reduction, salinity increase, or waterlogging, all of which have different primary causes.

• Which outcome arose when Roman road construction exceeded specified aggregate depth?
• Which outcome resulted from prolonged exposure of arsenical bronze tools to acidic soil in ancient Mesopotamia?
• Which structural failure would most likely impact a Roman ballista's accuracy after prolonged use?
• Which effect increased navigational accuracy during oceanic voyages when marine chronometers replaced sandglasses?
• Which benefit resulted from selective breeding of maize by pre-Columbian civilizations at high altitudes?
• Which risk increases when Roman concrete (opus caementicium) is exposed to seawater for extended periods?