Across
- 4. Something made of genes
- 6. 78% atmosphere
- 7. c
- 8. Condition of photosynthesis
Down
- 1. sunlight is a ------- for photosynthesis
- 2. we breathe it
- 3. Is the one that do photosynthesis
- 5. Ocean is made of -----
- 7. nitrogen -----
- 9. solid, liquids and ---