Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich risk increases when sediment supply exceeds stream transport capacity near mountain fronts?
A)Increased flash flood magnitude downstream✓
B)Enhanced groundwater recharge rates nearby
C)Higher rates of chemical weathering
D)Decreased rates coastal erosion
💡 Explanation
Increased flow-path roughness creates an alluvial fan; because a larger volume in the system experiences increased hydraulic resistance, flash floods become frequent as local infiltration is less efficient than overall surface flow and saturation. Therefore, magnitude increases, rather than other choices reflecting different scales or environments.
🏆 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 increased summer temperatures affect discontinuous permafrost?
- Which mechanism causes the formation of terraced alluvial fans in arid environments after prolonged tectonic uplift?
- Which consequence results when nutrient supply limits plankton growth within an ocean gyre?
- Which weathering product accelerates karst topography development in limestone formations?
- Which landscape outcome develops when acidic rainfall percolates porous limestone?
- Which soil outcome results when deforestation accelerates the transport rate?