Rate my looks please 1-10 will make brainliest for best answer

What is the hormone in your brain that makes you feel happy?

Is it ok for your junk to be 17inches in diameter and this is school related

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?