Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich geological hazard increases when rapid glacial melting destabilizes volcanic slopes in Iceland?
A)Cryosphere outburst flood (jökulhlaup)✓
B)Pyroclastic flow propagation
C)Sulfur dioxide gas emission
D)Lava flow viscosity increase
💡 Explanation
When glaciers melt rapidly, the reduction in ice mass loading destabilizes volcanic slopes, causing increased frequency jökulhlaups because meltwater accumulates beneath ice which then it bursts out releasing the water which can be further induced from heating from volcano. Therefore a jökulhlaup is the increased threat, rather than pyroclastic flows, gas emission changes, or lava flow viscosity which are controlled by different mechanisms.
🏆 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 is caused by increased acidity inhibiting upwelling?
- Which mechanism causes a shield volcano's broad, gently sloping shape when compared to stratovolcanoes?
- Which risk increases when a large glacial lake outburst flood (GLOF) occurs toward lower elevations?
- Which outcome occurs when intensive irrigation is applied?
- Which mechanism causes deflection of ocean gyres formed along continental eastern boundaries?
- Which outcome occurs when a river's **sinuosity** is extremely high?
