Author Question: Brandon's teeth are stained from his constant coffee drinking, so his dentist recommended that he ... (Read 112 times)

tnt_battle · **on:** Jun 21, 2018

Brandon's teeth are stained from his constant coffee drinking, so his dentist recommended that he switch to a new electric toothbrush that not only brushes teeth very rapidly, but also uses sound to reduce plaque and staining. What kind of sound is most likely generated by Brandon's new toothbrush?

a. infrasound
b. ultrasound
c. pure tones
d. noise

Question 2

A height/weight ratio frequently used to assess healthy weight, overweight, and obesity is the

a. body mass index (BMI).
b. body composition test.
c. submersion test.
d. Set Point Index.