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← GeographyWhich outcome occurs when felsic lava flows on land?
A)Explosive eruption, viscous lava flow✓
B)Shield volcano, effusive eruption
C)Gentle eruption, low viscosity flow
D)Pahoehoe texture forms readily
💡 Explanation
An explosive eruption occurs because felsic lava has high viscosity and gas content leading to rapid pressure buildup; fragmentation is the eruptive mechanism. This forms pyroclastic flows, rather than low-viscosity lava flows, therefore a gentle eruption does not result.
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