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← HistoryWhich danger increases when a Roman aqueduct's internal carbonate equilibrium shifts?
A)Increased hydrostatic pressure risks collapse
B)Flow rate may drop sharply
C)Incrustation accelerates, restricting interior area✓
D)Seismic vulnerability experiences disproportionate growth
💡 Explanation
Increased incrustation via mineral precipitation poses a risk because the loss of dissolved carbon dioxide drives precipitation of calcium carbonate via *Le Chatelier's Principle*, therefore reducing the cross-sectional area, rather than other structural failures because the dissolved gas plays little role in hydrostatic or seismic loading.
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