In pre-Inca Andean terrace farming, which consequence arises if a retaining wall collapses?

💡 Explanation

Nutrient runoff occurs because terrace collapse interrupts water retention, causing eroded topsoil to wash downhill, therefore downstream fields suffer from lost fertilizer, rather than simple soil drying or root problems within intact terraces.

• Which outcome increased draft impacts experienced by Viking longships nearing coastlines?
• Which outcome results when medieval Islamic mathematicians applied quadratic equations to geometrical optics?
• Which outcome likely occurred when a Viking longship encountered a sudden storm and wave load exceeded the ropes' design limits?
• Which consequence results via inaccurate observation, assuming limited resolving power for zenith stellar altitudes as viewed from medieval Damascus using an astrolabe?
• Which outcome occurs when limitations are imposed upon the size of individual pre-Columbian chinampa plots?
• Which outcome resulted when 16th century chinampa farmers near Tenochtitlan densely planted maize year-round without fallow periods?