14. En la mayoría de las sustancias, un aumento de temperatura hace que
?
(2 Points)

heat wave  

ola de calor

Explanation:

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /

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.