The type of air pollution that forms mostly in cold weather and is caused primarily by burning large amounts of coal and oil is called ________ smog.
Fill in the blank(s) with the appropriate word(s).
industrial
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According to the US Surgeon General, what percentage of adults do not achieve the recommended amount of physical activity?
A. 22% B. 60% C. 73% D. 85% E. 90%
A cardiotocograph is:
A. a procedure for measuring the head size of the baby and the pelvis size of the mother. B. a procedure for imaging the uterus. C. an instrument for recording the fetal heart rate during contractions. D. an instrument for measuring a pregnant mother's heart rate. E. a procedure for measuring the fetus.
Extreme lumbar curvature is called ________.
Fill in the blank(s) with the appropriate word(s).
Why are free weights typically not recommended for beginners?
A. Beginners cannot perform free-weight exercises for all major muscle groups. B. They require balance and technique, which may be difficult for beginners. C. They are too expensive and beginners do not know if they will like them or not. D. Fitness centers typically do not have free weights with light enough resistance for beginners.