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← GeographyWhich climatic outcome occurs when intertropical convergence zone weakens?
A)Reduced Hadley cell boundary migration✓
B)Strengthened polar vortex formation
C)Increased extratropical cyclone intensity
D)Enhanced Rossby wave amplification
💡 Explanation
Weaker convergence reduces heating driving Hadley cell circulation because less air rises; therefore, less boundary-area displacement occurs rather than impacting higher-latitude phenomena dependent on pressure gradients or longer-period wave disturbances.
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