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← HistoryWhich environmental consequence results when Inca terracing fails structurally?
A)Increased downstream siltation✓
B)Localized volcanic eruptions
C)Decreased atmospheric humidity
D)Regional temperature upswing
💡 Explanation
Excessive soil erosion and subsequent runoff increase downstream siltation because landslides overwhelm the terracing's water management function, therefore blocking controlled drainage, rather than the other effects due to erosion.
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