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
They all work in the digestive system and they all play a role in the digestive system
false is your answer............
Answer: food plain
Explanation:
Answer:
hydrogen
