The type of friction that exists between a surface and moving air is fluid friction, specifically air resistance.

Here's why:

* Fluid friction occurs when an object moves through a fluid (liquid or gas). Air is a fluid.

* Air resistance is a specific type of fluid friction that arises from the interaction between a moving object and the air molecules it encounters.

Air resistance is what makes it harder to run fast, slows down a falling object, and creates drag on airplanes.