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← GeographyWhich outcome occurs when a hydrovolcanic eruption discharges pyroclastic surges over a bog ecosystem?
A)Bog transformation into a maar crater
B)Rapid peat layer oxidation and combustion✓
C)Formation of a stable silica crust
D)Enhanced carbon sequestration rate
💡 Explanation
Rapid peat oxidation results because pyroclastic surges introduce extreme heat and oxidizing ash, triggering combustion via thermal decomposition; therefore a peat fire occurs, rather than stable crust formation, because the bog is highly combustible under intense heat.
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