Which of these is a source for particulate matter in the air?
a. automobiles
b. dust
c. fires
d. all of the above

Describe an individual healthy weight-management plan. the plan should include specific details about goals, diet, exercise, and evaluative monitoring.

What is the longest you should ice the injured area at one time? a. 10-20 minutes b. 30-60 minutes c. 1-2 hours d. as long as you want

Why would one lymph node in the neck be swollen and not the other? what causes them to swell?