Across
- 1. when people do bad things for the world
- 2. something that we should throw awat to the bin
- 7. when people cut the trees
- 8. people ride together at buses/trains
Down
- 1. when you use something only one time
- 3. when water go away from ocean/river/sea
- 4. when sonething will extinct in the future
- 5. when something had already died
- 6. when water/air/ground become dirty