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← GeographyWhich outcome occurs when geothermal plant injection increases?
A)Induced seismicity near fault lines✓
B)Silica scaling within heat exchangers
C)Decreased cooling tower plume visibility
D)Reduction in turbine blade corrosion
💡 Explanation
Fluid injection along pre-existing faults increases pore pressure, reducing effective normal stress and triggering slip; this is known as induced seismicity, because this destabilizes underground faults, therefore earthquakes are triggered, rather than scaling, plumes, or corrosion prevention.
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