Across
- 1. strong, unpleasant, and often dangerous gas or smoke
- 4. how high or big something is
- 6. to give, send, or put something back where it came from
- 8. to make something smaller
- 10. a man who is chosen to speak officially for an organization
- 11. to get better or to make something better
- 12. dirty air air, water, soil
- 14. to make something bigger
- 16. to find the answer to something
Down
- 2. an official plan or system
- 3. a natural world
- 5. bits of paper,empty cans on the street
- 7. go up
- 9. to suddenly go somewhere and be impossible to see or find
- 13. the cars, trucks, etc using a road
- 15. things you don’t want any more