The history of Earth is represented on which scale? Hutton scale
Steno scale
geological time scale
Mercator scale

The history of Earth is represented on the geological time scale.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.