Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich effect results when an alluvial river's sediment load increases rapidly due to deforestation upstream?
A)Increased channel sinuosity and meandering
B)Reduced floodplain inundation frequency
C)Elevated base level and braided stream formation✓
D)Decreased river channel avulsion events
💡 Explanation
When sediment load increases rapidly, aggradation occurs because the river's capacity to transport sediment is exceeded, raising the channel bed, and thus promoting new channels to form intertwined; a braided pattern. Therefore elevated base level and braided stream formation result, rather than increased meandering, less overbank flooding, or reduced division, which require stable discharge.
🏆 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 wave refraction focuses energy onto pre-existing coastal sea stacks composed of weaker sedimentary rock?
- Which mechanism sustains deep ocean thermohaline circulation after surface water increases in density?
- Which pedogenic effect results more rapidly when alternating extreme temperatures cause repeated volumetric change in granite?
- Which risk increases when a subsurface fault line intersects a large reservoir?
- Which outcome occurs when intensive irrigation is applied?
- Which risk markedly increases above limestone caverns when seasonal water tables surpass a critical saturation point?
