Lwhat is dark matter
can we travel faster than speed of light
what is chlorophyll

Which of the following is a major cause of injury

When a person undergoes root canal treatment or another endodontic treatment: [select all that apply] a.) the inside of the tooth is carefully cleaned and disinfected. b.) air is forced into the canal to stop bleeding. c.) the inflamed/infected pulp is removed. d.) the inside of the tooth is filled and sealed with a rubber-like material called gutta-percha

Example of health promoting behavior