All of the Following Are True Statements About Sound Waves

Multiple Choice

All of the following are true statements about sound waves except:

A) they are produced by a disturbance pattern in air molecules.
B) they gradually dissipate as they travel from the original sound source.
C) the human ear can detect sound waves between 20 and 20,000 cycles per second.
D) the average human ear is most sensitive to sound waves with frequencies between 5,000 and 10,000 cycles per second.
E) they consist of alternating regions of air compression and rarefaction.