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 consequence results when increased sediment load overwhelms channel capacity in a proglacial stream?
• Which risk increases when a rhyolitic lava dome nears collapse?
• Which mechanism distributes floating plastics throughout the North Pacific Gyre?
• Which process causes the headwall of a cirque to steepen, leading to eventual enlargement?
• Which risk increases when glacial meltwater streams accelerate?
• Which mechanism causes regional uplift when a continental plate overrides a younger oceanic plate at a compressional boundary?