text: And last but not least, It is the teachers job to educate student on unfamiliar subjects.Cars are a very nice thing to have, they are fast and they take you places that you want to go to. Cars come in a variety of colors and shapes. The thing about cars that you probably didn't know is that they pollute. Polluting is a very bad thing, everyday we're breathing in chemicals from cars that pollute. Doesn't sound very good now, does it? Cars are extreamly expensive too!