What is the average amount of hair on a human

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?

Which of the following is a lifestyle behavior? a. getting enough sleep b. exercise c. tobacco use d. all of the above

To prevent infants and young children from choking a.give them a knife to cut their food b.chew their food for them c.cut their food into bite size pieces