What is the correct definition of nutrition?
a.
the process of taking in food and using it for energy, growth, and good health.
b.
substances in foods that your body needs to grow.
c.
a measurement of the amount of energy available in foods.
d.
none of these answers are correct.

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?