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← GeographyWhich consequence results when a pyroclastic surge encountering deep snow?
A)Increased lateral blast pressure wave
B)Formation of volcanic lahar flows✓
C)Enhanced atmospheric aerosol scattering
D)Accelerated glacial ice accumulation
💡 Explanation
Lahar flows rapidly form because snow melts quickly from the pyroclastic surge's high temperature, driving enhanced debris flow; therefore, lahars are expected, rather than pressure, aerosols or increased ice.
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