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← GeographyWhich outcome arises when subtropical jet streams weaken?
A)Increased meandering of river courses✓
B)Reduced coastal upwelling intensity
C)Enhanced ocean gyre circulation strength
D)Decreased orographic precipitation totals
💡 Explanation
Increased meandering of river courses occurs. Rossby waves cause the jets to undulate. Weaker jets mean increased wavelength and amplitude, causing slower stream flows and, therefore, increased river meandering, rather than stable straight river flow regimes under faster jets.
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