Across
- 2. to use again
- 4. trash not disposed of properly
- 6. planet we live on
- 8. something that gives us oxygen
- 9. what you should do with aluminum cans
Down
- 1. month earth day takes place
- 3. something we need to take care of
- 4. keep something safe
- 5. throw trash on the ground
- 7. do something for someone else