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← HistoryWhich outcome occurred when groundwater encountered highly soluble gypsum during Roman aqueduct construction?
A)Increased hydraulic head pressure
B)Dissolution-driven subsidence occurred✓
C)Enhanced concrete mixture setting
D)Reduced overall channel roughness
💡 Explanation
Dissolution-driven subsidence occurred because the groundwater dissolved the gypsum, triggering the chemical weathering mechanism; therefore, sinkholes formed, rather than improved water flow, due to structural collapse and material removal by the water.
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