Pls answer it's a crossword puzzle question

Dear student,
Please find below the answer:

Across
1. Chlorophyll
4. Food chain
7. Green
8. Carbon dioxide/water
10. Carbohydrates/Sugars
​​​​​
Down
2. Photosynthesis
3. Leaf
5. Carbon dioxide/water
6. Herbivores
9. Oxygen
10. Six

Hope this information clears your doubt.
Regards.