C. Sonography
Sonography makes use of sound waves.
Answer:
D is the answer
Explanation:
But do u know if im right test it out then surprise
*l Take in air and fuel (Intake)
*l Compress (squeeze) the air and fuel (Compression)
*l Ignite and burn the air-and-fuel mixture (Power)
*l Get rid of the burned fuel gases (Exhaust)The Answer is C.Exhaust