8. It improves the strength, power, and endurance of your muscles
A. Muscle-strengthening
C. Bone strengthening
B. Aerobic activities
D. Stretching activity

9. Aerobic activity is also called
A. Flexibility activity
B. Endurance activity
C. Agility activity
D. Speed activity

10. How much physical activity should you be doing per week?
A. 60-minutes daily
B. 20 minutes on 3 days each week
C. At least 30 minutes of physical activities on most days
D. 150 minutes once a week

11. Which benefit is true about a regular aerobic activity?
A. Lungs and heart are able to work better and stronger
B. Gives a good feeling of relaxation
C. It strengthens bones and muscles
D. It makes you more flexible and socially active​