Across
- 3. average # years it takes to get a Christmas tree to harvest
- 5. Where the seed for a tree comes from
- 8. State that is #1 producer of Christmas trees
- 9. Idea that humans must interact with the environment that ensures there will be enough resources for future generations
- 10. process green plants use sunlight to synthesize food from carbon dioxide and water
- 13. Circular decoration made from greenery of a Christmas tree
- 14. upper layer of earth where tree roots grow
- 15. primary source of energy for photosynthesis in green plants
- 16. Chemical compound made from oxygen and carbon
- 19. the process which a seed sprouts and grows into a plant
Down
- 1. trees produce this for people to breathe
- 2. Young tree raised from a seed
- 4. Structure that regulates temperature and humidity inside to help plants grow
- 5. placing seed or seedlings in the soil to grow
- 6. State that is #2 producer of Christmas trees
- 7. a liquid that is essential for life
- 11. a woody plant
- 12. the most fragrant Christmas tree
- 17. natural environment where organisms live, grow, and thrive
- 18. The most popular Christmas tree