Which of the following is the reason an alcohol molecule is polar? A. it has a hydrogen atom.
B. It has uneven charges.
C. It has even charges.
D. It has an oxygen atom.

so whats the answer

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.

the answer

b.) bowling ball