Which risk increases when powerful jet streams meander significantly?

💡 Explanation

Temperature extremes are amplified because atmospheric blocking disrupts typical west-east weather patterns due to Rossby waves. Therefore, regions under the block experience prolonged temperatures, rather than normal seasonal variation, intensifying heatwaves or cold snaps.

• Which phenomenon results when subtropical high-pressure cells intensify and expand poleward?
• Which ocean surface current direction results when coastal upwelling is influenced by landmass shape?
• Which ecosystem effect occurs when substantial tephra deposition blankets a landscape?
• Which outcome reduces floodplain biodiversity following levee construction?
• Which outcome results as hydraulic conductivity decreases throughout pedogenesis?
• Which outcome occurs when a megathrust fault locks near a transform boundary?