Friction is a force in which two objects a. collide and move in one direction b. are repelled from each other c. slide against each other d. are attracted from a distance

Which finger should not be used when measuring heart rate?

Some infants in poorer households are not fed this important food for all babies. what is it? a. baby food b. breast milk or infant formula c. water. d. all of the choices are correct

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach