How much physical activity do children and teens need? 60 minutes at least twice a week 60 minutes at least five days a week 150 minutes a week 150 minutes at least five days a week

What creates an electric force field that moves electrons through a circuit? a. energy sourceb. loadc. metal wiresd. resistance

What are three major influences on whether someone starts to use tobacco

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.