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Which airflow results when polar and equatorial temperature differences increase?

A)Greater meandering of mid-latitude jet
B)Strengthened tropical cyclone circulation overall
C)Decreased upper-tropospheric wind shear locally
D)Weakened intertropical convergence zone intensity.

💡 Explanation

The increase in temperature gradient boosts the pressure gradient force, thus amplifying the effect of the Coriolis effect on air masses; stronger pressure and Coriolis forces cause greater geostrophic imbalance leading to meandering, rather than calmer airflow, because of instability.

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