This why I what the earth clean. The Galloway School A clean earth would have no cars, planes, or jets. No more cutting down tress or burning trees. So it doesn't make pollution. You have to find transportation.
Pollution is bad.
Don't litter on the streets. Don't put tires on the street. Get something else instead of factories. There are lots of things we can do to help keep the earth clean. For example, we can recycle paper and glass, we can walk or cycle to school.