Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome results when prolonged subduction ceases in a volcanic arc?
A)Isostatic uplift and crustal rebound✓
B)Decreased hydrothermal vent activity
C)Increased sedimentation rate offshore
D)Enhanced metamorphic rock formation
💡 Explanation
Isostatic uplift occurs because the removal of the dense, subducting slab causes bouyancy and the crust to rebound upward via isostasy, rather than continued subsidence. Therefore resulting in uplift; rather than sedimentation which would add weight.
🏆 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 weathering outcome results from consistent unidirectional wind abrasion?
- Which outcome occurs when excessive rainfall intensifies leaching in tropical soils above bauxite deposits?
- When feldspar rock is exposed to weathering, which pedogenesis outcome occurs due to hydrolysis?
- Which outcome occurs when prolonged pyroclastic flows destabilize slopes?
- Which risk increases when warming tundra causes thermokarst lake formation?
- Which effect causes rapid stalactite growth with elevated pCO2?
