The purpose of pre-cleaning the dental operatory is to.. a) separate contaminated and uncontaminated waste. b) reduce the number of ­contaminated items in the treatment area. c) prevent debris, saliva, and blood from drying on instruments.

B.

All dentist equipment is used in the mouth. Many deseases, bacteria and viruses are transmitted trough saliva, and not all of these are weak. So, that is why we clean the dental operatory, to lower the chances of transmitting anything.

Hope it helped,

BioTeacher101

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.