Across
- 3. you need it to grow plants
- 5. nitrogen is made of oxogen and ____
- 7. our planet
- 8. used as plant fertilizer
- 9. we rotate around it
Down
- 1. april 22 of every year
- 2. you throw it out(most of the time)
- 4. green stuff on the ground
- 6. pet or friend?