What are the four main types of vegetables?

orange, dark green, beans and peas, and starchy

red, leafy, fat and apples

berries, squash, orange and lentils

peas, potatoes, water and beans

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?