Match each description with the force that is being described. Question 34 options: This force is only important near the surface. This force is directed perpendicular to the isobars. This force does not affect upper-level winds. This force is stronger when isobars are closer together. This force is always directed perpendicular to the wind. This force causes the wind to blow. This force holds the air to the earth. This force is largest at the poles and zero at the equator. This force is caused by a difference in pressure over a distance. This force increases because the wind increases and is zero if you are standing still. This force is caused by the rotation of the Earth. This force always slows the wind. This force pulls the air toward lower pressure. This force is directed to the right of the motion in the Northern Hemisphere. 1. Coriolis force 2. Pressure gradient force 3. Gravity 4. Friction