| A | B |
|---|
| goods | things people buy or sell |
| service | work that one person does for another |
| entrepreneur | a person who takes a risk and starts a business |
| profit | money a business earns after paying all its costs |
| transportation | the way people and things are carried from one place to another |
| steam engine | a machine that turns steam into power |
| railroad | a track with two steel rails on which trains move |
| telegraph | a machine that sends signals by electricity |
