When air expands or contracts what type of temperature change does it experience?

Air expands when heat is added. Air contracts when the temperature decreases *cold air*

i think its the first one

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.