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← GeographyWhich outcome occurs when tephra accumulation rapidly melts glacial ice?
A)Lahars form damaging mudflows✓
B)Pyroclastic surge intensifies nearby
C)Shield volcano eruptive phase ends
D)Silicic lava domes cool rapidly
💡 Explanation
Lahars result because increased water saturation and sheer weight of tephra initiates debris flow; therefore, very mobile mudflows increase, capable of traveling long distances, rather than only affecting nearby pyroclastic activity or lava cooling rates.
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