Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome results when a delta experiences overloaded sediment deposition?
A)Avulsion creating a new channel✓
B)Saltwater intrusion increase in estuaries
C)Development of a braided river system
D)Accelerated chemical weathering on levees
💡 Explanation
Avulsion occurs because excessive sediment deposition raises the riverbed, therefore making it energetically favorable for the river to find a steeper, shorter path to the sea, rather than continuing along the existing channel. Saltwater intrusion or chemical weathering are unrelated deposition events.
🏆 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 mechanism alters regional rainfall patterns associated with changes deep-ocean thermohaline circulation?
- Which mechanism most directly weakens the Atlantic Meridional Overturning Circulation (AMOC) when Greenland's ice sheet melts?
- Which outcome is accelerated on slopes with high permafrost content when experiencing thawing?
- Which process exacerbates debris flow risk on an alluvial fan originating from glacial valleys?
- Which mechanical effect primarily initiates deep-focus earthquakes within subducting lithospheric slabs?
- Under what circumstance would significant overwash initiate barrier island migration?
