What are tectonic plates made from?

there’s no image attached but i can if you want: )

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

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.