Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome is caused on a volcanic lahar's energy as it transitions from confined channel to unconfined plain?
A)Increased deposition and flow halting✓
B)Decreased sediment concentration
C)Amplified erosion of plain sediments
D)Elevation of flow pressure
💡 Explanation
Increased lahar deposition occurs because energy dissipation triggers the **flow deceleration and spreading** over a wide unconfined area leading to increased friction and decreased carrying capacity; therefore, deposition occurs rather than erosion or pressure increase which occur in constricted settings.
🏆 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 process causes increased geyser activity near stratovolcanoes?
- Which shift occurs in coastal upwelling patterns along South America's western coast during an El Niño event?
- Which outcome occurs when sediment supply decreases substantially into a delta lake?
- Which outcome results when intense chemical weathering alters feldspar?
- Which risk increases for alpine glaciers facing foehn wind patterns?
- Which outcome increases when prolonged drought limits recharge?
