What's the most superior part of the lower respiratory system? pharynx
sinus cavity
trachea
lungs

Lifestyle diseases are caused by a combination of

Alot of ! why does society places such an emphasis on the value of physical health and wellness? what are the benefits of active living?

If your job requires you to use a respirator, your employer is required to do three things. what is missing from the list? have you medically evaluated to determine that it is safe for you to wear a respirator train you on how and when to use a respirator