Across
- 1. Amphibian
- 4. A species that is likely to become endangered
- 6. The variety of living things
- 8. The movement from one habitat to another, seasonal
- 10. Law to regulate air emissions
- 11. Cute marine or freshwater mammal
- 12. Native to an area
- 15. A species is one that threatens the environment and is nonnative
- 16. Populations that live together
- 17. All of the living things in a specific area
Down
- 2. Period of below average rainfall
- 3. The process of assisting the recovery of an ecosystem
- 5. A home to specific organisms
- 7. A group of cardinals
- 9. The Mechanism for evolution
- 12. A species that no longer exists
- 13. A species that is facing extinction
- 14. President that made Earth day