Across
- 2. he had to change the light____
- 3. send things to sell abroad
- 5. to be real or present
- 7. happened
- 10. _______ trees to save carbon
- 11. the answer to a problem
- 12. when you leave the room, ______ off the lights
- 13. not enough rain
- 16. the air, land and sea around us
- 19. use again
- 20. old
- 21. good for the environment
- 22. the result of too much rain
- 23. oil, natural gas and coal are all _______ fuels
Down
- 1. help human life to continue
- 3. gas and electricity
- 4. it's not good to _______ things away
- 6. turn off the ____ in the bathroom!
- 8. damaging very badly
- 9. opposite of save
- 12. opposite of waste
- 14. carbon dioxide and methane are ________ gases
- 15. needs a solution
- 17. to sell again
- 18. poisonous