What is one thing a person should do to stay safe when exercising?
The image shows friends at the gym.

Federal guidelines recommend that children perform a vigorous workout at least three days a week. Which activity would meet this goal?
The image shows what happened when Claudia was jogging.

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The graph illustrates the top five activities in Physical Education at schools.

According to federal guidelines, how much time should an adult perform moderate exercise each week, in addition to strength training?
Which is an example of a barrier to exercise?
Sara has recently joined a sports club and her parents are noticing some changes in her behavior. Which of these indicates that Sara might be using performance-enhancing drugs?
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