Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome predominates when differential pressure fractures cirque headwalls?
A)Enhanced glacial plucking✓
B)Accelerated esker formation
C)Decreased sediment load
D)Widespread loess deposition
💡 Explanation
Enhanced glacial plucking results because pressure differences exploit pre-existing weaknesses that cause mechanical weathering; repeated freeze-thaw cycles cause rock fracture via frost wedging at cirque headwalls. This enhances plucking, rather than esker deposition, which involves subglacial meltwater features.
🏆 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 →- Increased monsoon intensity over uncultivated loess accelerates which outcome?
- Which flow regime change arises when high evaporation rates decrease freshwater stream discharge into saline estuary environments?
- Which mechanism governs the frequency of large megathrust earthquakes along subduction zones?
- Which outcome occurs when lithospheric thinning reduces magma viscosity?
- Which effect contributes to deepwater formation near Antarctica?
- Which mechanism maintains magma convection within Earth's mantle beneath volcanic hotspots?
