Across
- 4. A basic need for plants
- 6. Alertness is same as
- 7. Opposite to non-renewable
- 9. Produces free oxygen
- 12. form
Down
- 1. A layer which protects us
- 2. ______ less save more.
- 3. A gas we inhale
- 5. basic source to live in
- 8. June 5 is celebrated as
- 10. A source used again
- 11. Only plant to survive