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← GeographyWhich consequence results when a pyroclastic surge encounters standing water?
A)Formation of a lahar flow✓
B)Creation of Pele's hair strands
C)Vaporization into volcanic smog
D)Deposition of ignimbrite sheets
💡 Explanation
A lahar flow forms because rapid mixing of pyroclastic material and water initiates **sediment bulking**, increasing mass flow via buoyancy. Therefore this creates a lahar, rather than other volcanic phenomena requiring dry conditions such as Pele's hair.
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