Which risk increases on steep volcanic slopes with substantial pyroclastic deposits?

💡 Explanation

An unstable accumulation of pyroclastic material increases failure by gravitational unloading; therefore debris avalanches develop, because rapid sediment relocation leads to landslides, rather than changes in geothermal gradient or magma composition, or flow type.

• Which change increases the sinuosity of meandering streams?
• Which outcome occurs when a glacial outburst flood encounters a flat plain composed of thick loess deposits?
• Which risk increases when tectonic uplift causes increased incision within a broad alluvial plain?
• Which risk escalates when ephemeral stream discharge exceeds capacity on arid-region alluvial fans?
• Which process predominantly facilitates transfer of nutrients required in surface waters by phytoplankton during coastal upwelling events?
• Which outcome occurs when viscous magma continually erupts, forming an unstable lava dome?