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← HistoryWhich risk increases if Inca terracing wall foundations experience seasonal freeze-thaw cycles?
A)Decreased crop yield stability
B)Accelerated soil nutrient depletion
C)Increased structural instability✓
D)Enhanced water infiltration rate
💡 Explanation
Delamination risk increases because ice lens formation within foundations causes frost heaving; this mechanical weathering weakens stone interfaces, therefore structural strength reduces, rather than improving soil properties or crop production.
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