Christmas Tree Crossword Puzzle #2

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