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← GeographyWhich outcome occurs when pyroclastic density currents incorporate atmospheric moisture?
A)Formation of cohesive lahars downslope✓
B)Increased silica content in deposits
C)Elevated sulfur dioxide emission levels
D)Widespread stratospheric sulfate aerosols
💡 Explanation
The formation of lahars occurs because incorporation of moisture creates mudflows; this is driven by the mechanism of debris flow. Lahars are composed of pyroclastic material and water, therefore increasing their destructive potential, rather than changing composition.
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