Across
- 3. roots absorb this
- 5. leaves absorb this from air
- 7. this is required for photosynthesis to take place
- 8. water and carbon dioxide is converted into this by green leaves
Down
- 1. process by which green leaves produce food
- 2. roots also absorb this
- 4. produced as a by product of photosynthesis
- 6. green substance contained by leaves