The amount of force that air is placing on the Earth is called air pressure.

Here's why:

* Air has weight: Just like any other substance, air has mass and is therefore affected by gravity. This means air exerts a force on the Earth due to its weight.

* Force per unit area: Air pressure is the force exerted by the weight of air on a given area of the Earth's surface. It's measured in units like pounds per square inch (psi) or millibars (mb).

So, while air itself doesn't have a specific name for the force it exerts, we call that force "air pressure."