What is the dependent variable? and what is the independent variable?

in these situations

Injuries in the environment are a result of a. lower level activities. b. irresponsibility. c. mismatch between a child's abilities and activities. d. children not paying attention.

Which is one step that teens can take to advocate for food security in their communities? ask local gyms for free memberships. visit their mayors to present ideas on how to increase the availability of local yoga classes petition parks departments for walking trails. write letters to the editor of the local newspaper about a lack of full-service grocery stores.

What parts of the cardiovascular system are affected with atrial fibrillation?