Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich risk substantially increases around composite volcanoes during periods of heightened lava effusion?
A)Formation of lahars increases rapidly downstream✓
B)Glacial ablation rates accelerate drastically nearby
C)Oxidation of metal deposits yields acidity
D)Atmospheric ozone depletion increases sharply above
💡 Explanation
The risk of lahars increases due to lava melting snow/ice, creating unstable flows, this is called volcanic debris flow. Lahar generation dominates during lava effusion events, rather than acceleration of ablation, metal enrichment, stratospheric changes, because of rapid thermal imbalances.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Geography →- Which outcome results when intense offshore winds induce deflation?
- Which feedback effect accelerates soil horizon mixing during intensive bioturbation?
- Which outcome occurs when a megathrust fault locks near a transform boundary?
- Which consequence frequently results when heavy tephra accumulates downwind?
- Which mechanism causes desert ventifact formation on basalts?
- Which consequence results when coastal upwelling ceases near a major fishing ground?
