D. oxygen,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
<span>It increases the amount of time spent on fitness activities.
It is often more convenient to participate in lifestyle fitness activities than more formal fitness activities.
It helps a personal fitness program lead to lifestyle change.</span>
the body composition is the ratio of body fat to the muscles
I would say the last option students who bring weapons to school are acting on the rage they feel as victims of harassment.
