Which risk greatly increases after a pyroclastic surge?

💡 Explanation

Lahars are more likely because pyroclastic surges deposit large volumes of unstable volcanic debris that can be easily mobilized by rainfall; therefore, mudflows pose a greater hazard rather than increased fault stressing which causes tectonic shifts.

• Which outcome affects cave ecosystems if excess agricultural fertilizer runs off into karst stream networks?
• Which outcome occurs when increased glacial ablation destabilizes permafrost?
• Which process results when windblown loess deposits accumulate?
• Which mechanism causes density-driven ocean circulation when surface water salinity increases substantially at high latitudes?
• Which phenomenon causes deflection of ocean currents away from wind directions, induced by Ekman transport?
• Which outcome results when a meandering stream breaches its levee system during high discharge?