During Inca terracing construction, which consequence results from inadequate subsurface drainage?

💡 Explanation

The risk of landslides increases because increased pore water triggers a reduction in effective stress manifesting in liquefaction of the soil during seismic events; therefore slope instability is the immediate safety consequence, rather than chemical effects on the nutrients.

• In Alhazen's experiments with lenses, which consequence results with increased surface curvature?
• Which consequence results when Viking longship stays experience excessive moisture?
• Which limit was addressed, and design advanced, when Viking ships used 'yarn twist' for ropes?
• Which outcome arose in early aqueduct systems when Rome experienced siege conditions?
• Which vulnerability contributed most to frequent breaches of ancient rammed-earth fortification walls, compared to stone walls?
• Which consequence results when soil lacked nitrogen during ancestral Pueblo maize cultivation?