Surface winds typically blow at an angle to isobars on a weather map, while winds aloft move air in a direction nearly parallel to the isobars. Which of the following factors best explains why surface winds move differently than winds aloft?a) africtionb) humidityc) clear air turbulenced) the pressure-gradient force

The correct answer is A. Friction

Explanation:

Surface winds typically blow at an angle to isobars on a weather map, while winds aloft move air in a direction nearly parallel to the isobars. FRICTION is the factor that best explains why surface winds move differently than winds aloft.

Friction is a force that holds back the movement of a sliding object. It is also the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.

It is also the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

doctrine that the us had the right to expand throughout north america.