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← GeographyWhich outcome concerning the Earth's climate results when anthropogenic aerosols disrupt Hadley cell circulation?
A)Expansion of subtropical desert zones✓
B)Weakening of the Walker circulation
C)Intensification of polar vortex events
D)Increased frequency of La Niña events
💡 Explanation
The outcome is subtropical desert expansion because aerosols modify atmospheric stability, weakening upward motion within the Intertropical Convergence Zone. This causes a poleward shift in Hadley cell ascent rather than maintenance of normal boundaries; therefore, desert zones expand at lower latitudes.
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