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← GeographyWhich risk significantly increases upon encountering phreatomagmatic events at stratovolcanoes?
A)Increased lateral blast potential✓
B)Decreased lahar formation likelihood
C)Enhanced effusive lava flow longevity
D)Reduced pyroclastic density current mobility
💡 Explanation
Lateral blast potential intensifies because rapid steam expansion from water interaction enhances Fragmentation. This over-pressurizes the volcanic system, therefore blasts occur rather than typical eruptions, differing from simpler explosions.
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