Which immediate volcanic consequence increases slope instability around stratovolcanoes?

💡 Explanation

Hydrothermal alteration weakens the rock because circulating fluids dissolve minerals, therefore reducing shear strength rather than direct blasts and deposition, which are secondary effects; weakening dominates quickly during activity.

• Which mechanism causes an island arc to form instead of continental volcanism when two oceanic plates converge?
• Which risk increases when a levee system restricts sediment deposition on adjacent floodplains?
• Which outcome occurs when arid region dune crests thin?
• Which outcome increases thermal stratification during upwelling events?
• Which outcome results when the carrying capacity of an alluvial river suddenly decreases near a rapidly constructed highway embankment?
• Which climate outcome results when Walker circulation decelerates?