Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome consistently results when effusion rate slows in a volcano forming a viscous dome at 3500m?
A)Increase in dome instability potential✓
B)Enhanced convection within the vent
C)Formation of low-angle lava flows
D)Widespread alkaline ash deposition
💡 Explanation
Dome volume dictates instability; a slower effusion increases the steepness therefore the gravitational stresses increase the likelihood of flank collapse, pyroclastic flows and explosive events rather than convection or other forms of gentle extrusion.
🏆 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 deformation mechanism causes increased earthquake frequency along transform plate boundaries given increased friction?
- Which increasing risk results when intense rainfall interacts with existing karst topography?
- Which outcome results when organic matter accumulates during soil pedogenesis?
- Which climate outcome occurs when intensifying subtropical gyres expand poleward?
- Which process limits reservoir capacity affected by heavy sediment load in an alluvial river?
- Which mineral deposition pattern indicates stable cave climate?
