18. In order to minimize the possibility of overheating, exercise attires should be all of the following EXCEPT:
A. loose-fitting
B. lightweight
C. dark-colored
D. cotton or linen

19. When a person is losing too much water and heating up because of exercise, what injury is he experiencing?
A. Dehydration
B. Hypothermia
C. Hyperthermia
D. Overexertion

20. Who among the following is at the highest risk for hyperthermia?
A. Those who live in cities
B. Those with air conditioners
C. Those who live in the mountains
D. Those who live in the countryside

21. When does hypothermia occur? I. When the body is exposed to cold air II. When the body temperature rises above 104 degrees III. When the body temperature drops below 95 degrees
A. I only
B. I and II
C. I and III
D. I, lla​