In the absence of friction,the combined effect of the Coriolis force and the pressure gradient force produces
A)air flow from low to high pressure centers.
B)geostrophic winds at altitudes above the ground.
C)air flow perpendicular to the isobars.
D)air flow in a north-south direction.
E)surface winds.

Question

Quizplus · Accepted Answer

The Coriolis force and the pressure gradient force are balanced in geostrophic winds at altitudes above the ground. Without friction, air flows parallel to isobars in a direction perpendicular to the pressure gradient force, which produces a geostrophic wind.

In the Absence of Friction,the Combined Effect of the Coriolis