Which outcome occurred when the hydraulic gradient exceeded terrace wall limits in Inca agriculture?

💡 Explanation

When wall limits were exceeded, hydrostatic pressure built up, exceeding slope stability because soil shear strength decreased with elevated water content, promoting landslides. Therefore slope destabilization occurred, rather than nutrient depletion, dehydration or salt accumulation which require entirely different mechanisms of water transport.

• Which outcome arises from inaccurate keying of stones during early Inca ashlar masonry construction?
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• When gunpowder crossbow technology was evolving, which risk increased in the creation of cast iron crossbow trigger mechanisms?
• Which outcome resulted when ancient Andean terrace farming interrupted natural watershed flow?
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• Which outcome most threatens a late-10th century timber 'ravelling bridge' during a river flood?