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← GeographyWhich risk increases during volatile lava dome formation?
A)Sudden release of pyroclastic flows✓
B)Acceleration of regional tectonic subsidence
C)Localized increases in mantle convection
D)Diminished exsolution of dissolved volatiles
💡 Explanation
Pyroclastic flows increase because viscous magma obstructs gas release, causing increased pressure driving explosive eruptions; therefore more sudden flows occur, rather than tectonic, asthenospheric, or gas-retention effects that require different mechanisms.
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