Which of the following signs may indicate heat exhaustion

a. muscle cramps, fatigue, and lightheadedness
b. hunger, fatigue, and back pain
c. lethargy, thirst, nausea, dry skin
d. over excitability, inability to sleep

Causation can be proved by using an

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

Taking a foil acid supplement during childhood can prevent illness