What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars?

Question

ATPL - Airline Transport Pilot license - Meteorology - What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars?

QuizVDS · Accepted Answer

Surface friction.

QuizVDS · Answer

The greater density of the air at the surface.

QuizVDS · Answer

Coriolis force.

QuizVDS · Answer

The greater atmospheric pressure at the surface.

ATPL: What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars?

Domanda 181, Meteorology - ATPL - Airline Transport Pilot license