Transportation. A word that can be used in a lot of ways. I think the best way to travel is by car. I feel like it is the most efficient for short distances and for long distances unless you have to cross through waters. Then if you want to include waters and land I think the best is a helicopter because you can start it right up and can go next door or across the ocean. If we didn’t have transportation then the economy would lose so much money. A big one would be gas and mechanics and also engineers.