Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich global air mass shift results when polar amplification weakens thermal gradients?
A)Decreased mid-latitude cyclogenesis events
B)Poleward expansion of Hadley cells✓
C)Strengthened polar vortex formation shift
D)Equatorward displacement of Walker circulation
💡 Explanation
Hadley cell expansion occurs from weakened arctic temperature gradients impacting air pressure, which influences upper-level wind patterns through the Coriolis effect; therefore, the Hadley cells move poleward, rather than the altered cyclogenesis caused by other atmospheric mechanisms.
🏆 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 risk increases when mountain streams fed by glacial melt reach elevated temperatures?
- Which process is accelerated by freeze-thaw weathering acting on a cirque headwall?
- Which phenomenon causes thermocline deepening in the eastern Pacific Ocean during El Niño events?
- Which mechanism dominates displacement along a major strike-slip fault impacting urban infrastructure?
- Which outcome occurs when burrowing organisms introduce significant bioturbation in permafrost regions?
- Which mechanism limits biological productivity in stagnant, deep ocean basins cut off from surface circulation?
