Across
- 5. this is used to make steel and comes from the ground
- 6. one kind of air pollution
- 7. one effect of climate change
- 9. what is a major source of air pollution?
- 12. how many main types of transportation pollution are there?
- 13. carbon dioxide is a greenhouse what?
- 14. materials used to make cars include glass, rubber, steel and what?
Down
- 1. another kind of air pollution
- 2. who is working hard to solve the pollution problem?
- 3. a vehicles what gives off emissions?
- 4. car parts in landfills can pollute what?
- 6. how many million deaths did air pollution cause in 2012?
- 8. where a copper mine damaged a lake
- 10. a cars body is normally made of this
- 11. more than a billion of these are on the roads