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← GeographyWhich outcome occurs when unconsolidated regolith saturates with pyroclastic flows?
A)Lahars form rapidly downslope✓
B)New stratovolcanoes initiate growth
C)Fumarole activity dramatically declines
D)Andesitic lavas crystallize exotically
💡 Explanation
Lahars readily form, because saturated regolith mixes with pyroclastic material to create mudflows; this is enhanced by gravity. Therefore, lahars form, rather than steady lava flows, because the abundant loose material destabilizes gradients instead.
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