Which consequence results when water drainage fails on Inca terraces?

💡 Explanation

Slope instability occurs because water saturation increases pore pressure, reducing effective stress through the mechanism of soil liquefaction. Therefore, terracing gives way, rather than maintain structure, decreasing surface runoff which prevents erosion.

• Which mechanism limited reliable transatlantic voyages before fore-and-aft sails?
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• Which consequence emerges when poorly binding Inca masonry expands?
• Which consequence results when chinampa farmers neglected terraces?
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