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← ScienceWhich risk increases when a geothermal power plant sustains cyclic operation involving high injection pressure?
A)Increased seismic activity nearby✓
B)Reduced heat extraction efficiency
C)Turbine blade cavitation increases
D)Scaling within the reinjection well
💡 Explanation
Induced seismicity increases near geothermal plants because increasing the injection pressure enhances pore pressure. Elevated fluid pressure lowers the effective stress along pre-existing faults, stimulating seismic events; therefore it increases seismic activity, rather than heat efficiency.
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