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p. 0000
come girls for shôwíñg​

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.

c. heat from the poles back down towards the equator.

the correct answer to this question is #5