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← GeographyWhich risk significantly increases after a pyroclastic surge buries a temperate glacier?
A)Rapid glacial outburst flooding downstream✓
B)Increased albedo reduces regional melting
C)Tephra stabilization inhibits stream incision
D)Enhanced photosynthesis affects carbon sequestration
💡 Explanation
Glacial outburst flooding risk increases because hot pyroclastic flows accelerate ice melting via conductive heat transfer, causing meltwater accumulation; therefore, floods occur rather than albedo increase, which would slow melt.
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