Across
- 3. - Harmful things added to air, water , or land
- 6. - A large area filled with trees
- 9. - A big , slow moving mass of ice
- 11. - A large natural area with a specific climate and animals
- 12. - Water that comes from clouds
Down
- 1. - Rotten organic waste used as natural fertilizer
- 2. - Usual weather conditions in a region over time
- 4. - Gas released by trees that we breathe
- 5. - To use old items to make something new again
- 7. - Natural home of an animal or plant
- 8. - Plants grow in this part of the earth
- 10. - The place we live on