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

When deciding to become a parent: a. the only thing that matters is the desire to have a child. b. the most important thing is whether or not you are financially ready. c. you should be ready to support and nurture a child. d. you have no choice; "nature" decides if and when you will have a child.

What can you do to support your own mental health and physical health?

Cardiac output is affected by heart rate exercise stroke volume all of the above