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← GeographyWhich consequence results when pyroclastic flows erode unstable terrain?
A)Increased lahar occurrence downstream✓
B)Formation of obsidian-rich deposits
C)Accelerated glacial ice melting
D)Enhanced stratospheric aerosol albedo
💡 Explanation
Increased lahar occurrence happens because erosion by pyroclastic flows can destabilize slopes, releasing sediment and water. This triggers mudflows involving sediment; therefore, lahars are more frequent, rather than producing obsidian, melting ice or increasing albedo without adding particulates.
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