Which outcome occurs when high-silica magma explosively erupts?

💡 Explanation

Extremely viscous, high-silica magma traps gases, triggering violent eruption causing pyroclastic flow because volatile expansion shatters magma into ash. Therefore, scorching clouds of ash spread, rather than forming lava flows, trenches or undersea ridges.

• Which long-term outcome results when bioturbation sharply decreases in grassland soils?
• Which thermocline behavior is driven by Ekman transport?
• Which soil horizon develops rapidly when vegetation cover expands?
• Which erosional process primarily shapes valley floor profile following glacial retreat from a cirque?
• Which outcome results when a levee's soil lacks compaction?
• Which outcome increases when meltwater volume rises within a cirque?