Of the following minerals which want to be found in trace amounts in the human body? chlorine sodium iron calcium

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?

To prevent infants and young children from choking, cut their food into pieces that can be easily swallowed. true false

Which of these drugs can be approved for medicinal purposes in a limited capacity? a) marijuana b) tobacco c) alcohol d)caffeine