Across
- 3. Anchors the tree
- 6. Tree rings, one ring equals ____
- 7. Clearing of forested land
- 8. Where photosynthesis occurs
- 9. Trees produce this element, vital to humans
Down
- 1. Trees take in this element
- 2. This process allows trees to turn carbon dioxide into oxygen
- 4. How much deforestation contributed to to global warming
- 5. Supports the tree