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← GeographyWhich phenomenon results when atmospheric jet streams encounter mountain ranges?
A)Rossby wave amplification increases shear✓
B)Stratospheric cooling creates polar vortex
C)Convection strengthens global thermals
D)Orographic lift reverses pressure systems
💡 Explanation
Rossby wave amplification occurs because the Coriolis effect deflects the jet stream, and mountain ranges force it upwards causing larger deflections downstream; therefore, wave peaks intensify enhancing wind shear, rather than creating only small deviations.
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