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← GeographyWhich consequence occurs the instant a lava dome collapses within a stratovolcano structure?
A)Catastrophic pyroclastic density current✓
B)Localised acid rain formation
C)Immediate glacial ice sheet melting
D)Elevated atmospheric methane production
💡 Explanation
A pyroclastic density current results because the sudden decompression unleashes rapidly expanding gases and fragmented lava; therefore explosive lateral blasts occur, rather than ice melts, rain, or altered methane output, under common conditions.
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