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← GeographyWhich atmospheric mechanism predominantly deflects high-altitude eastward-flowing air streams on a rotating planet?
A)Pressure gradient adjustment
B)Orographic lifting amplification
C)Coriolis force divergence✓
D)Hadley cell thermal inversion
💡 Explanation
When earth rotates, the Coriolis force acts because moving air masses deflect to the right in the Northern Hemisphere, creating high-altitude jet streams divergence. Therefore Coriolis force divergence results, rather than pressure adjustment, orographic processes, or Hadley cell inversions which require different conditions to dominate.
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