Which outcome is prevalent when stratovolcanoes experience pyroclastic density currents?

💡 Explanation

Lahars are common because pyroclastic density currents deposit ash and debris on the slopes, initiating mudflows when mixed with water via melting ice or heavy rainfall; therefore, lahars form, rather than the other geological processes which require different eruption behaviors.

• Which outcome results when speleogenesis alters groundwater acidity?
• Which outcome results when a lava dome's flank destabilizes?
• Which process initiates headwall erosion to form distinct glacial cirques given seasonal freeze-thaw cycles?
• Which risk increases when road construction disrupts the active layer above permafrost slopes?
• Which process dominates within a high-altitude cirque basin experiencing repeated freeze-thaw cycles?
• Which phenomenon causes deflection in atmospheric jet streams around high-pressure cells?