I already know that this app is not for other things but who wants to be my g-i-r-l-f-r-i-e-n-d but does not have ok

no but thank u for the free points.

Um sorry no, already have a lover

true                                                                                                       true true true true true true

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.