Which benefit occurred when pre-Columbian Andean terraces implemented stone-faced retaining walls on steep slopes?

💡 Explanation

When stone-faced retaining walls were implemented, they caused reduced soil erosion because the structures physically blocked downhill soil movement by intercepting the water and sediment flow. Therefore decreased soil erosion resulted, rather than fixing nitrogen, pesticide application, or genetic diversity which rely on unrelated agricultural approaches.

• Which outcome resulted from medieval Islamic scholars' advancement of algebra to solve inheritance problems according to Sharia law?
• Which outcome occurred when annual flooding inundated Aztec chinampas during maize cultivation?
• Which structural failure results when a Roman arch is constructed without adequate keystone support during initial assembly?
• Which factor most limited structural load-bearing capabilities of cast bronze columns created with ancient metallurgy techniques?
• Which benefit resulted when Aztec chinampa agriculture extended into saline lake Texcoco shoreline?
• Which mechanism causes timber to petrify into stone-like material over geological timescales?