Across
- 2. an adjective that describes the lack of fertility
- 4. a place where species live
- 5. the elemental we need to breathe
- 6. species that carry their descendant in a pouch
- 7. animals that lives free in nature
- 9. constituent of wood
- 10. the national tree of Finland
- 13. plant that lives in water
- 14. dry ecosystem
- 15. a process that happens due the excess of nutrients
Down
- 1. the animals in nature
- 3. species that are in risk of disappearing are _
- 8. when a fluid heats it turns into gas. That's called:
- 11. species that eats meat
- 12. a humid ecosystem with peat