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← GeographyWhich risk greatly increases after a pyroclastic surge?
A)Deposition creating temporary lahar flows✓
B)Increased faultline stress from ash loading
C)Elevated CO₂ levels harming deep miners
D)Groundwater infiltration causing phreatic blasting
💡 Explanation
Lahars are more likely because pyroclastic surges deposit large volumes of unstable volcanic debris that can be easily mobilized by rainfall; therefore, mudflows pose a greater hazard rather than increased fault stressing which causes tectonic shifts.
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