Which part of the ear picks up vibrations from the atmosphere?
eardrum
bones of the middle ear
hair cells
nerve from the inner ear

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !