Which of the following does not influence wind directions in the upper atmosphere?
A)pressure gradients
B)friction
C)Coriolis effect
D)none of the above

Question

Quizplus · Accepted Answer

Friction mainly affects wind directions in the lower atmosphere, but not in the upper atmosphere where wind flows are not impeded by surface features. Pressure gradients and the Coriolis effect, on the other hand, are major influences on wind directions at all altitudes.

Which of the Following Does Not Influence Wind Directions in the Upper