Across
- 4. The state of a species no longer existing.
- 7. The act of protecting and preserving natural resources and the environment.
- 8. A natural home or environment of an animal, plant, or organism.
- 9. The process of converting waste into reusable material.
- 11. At risk of becoming extinct.
- 13. The clearing or thinning of forests by humans.
- 17. A change in an organism that helps it survive in its environment.
- 19. The introduction of harmful substances into the environment.
- 20. Seasonal movement of animals from one region to another.
Down
- 1. Using resources in a way that does not deplete them for future generations.
- 2. An animal that hunts and eats other animals.
- 3. A resource that can be replenished naturally over time.
- 5. Illegal hunting or capturing of wild animals.
- 6. The variety of life in the world or in a particular habitat or ecosystem.
- 10. The average weather conditions in a region over a long period.
- 12. A community of living organisms interacting with their physical environment.
- 14. Preserved remains or traces of ancient organisms.
- 15. An element found in all living things; linked to greenhouse gases.
- 16. An animal that helps plants reproduce by spreading pollen.
- 18. An animal that is hunted and eaten by another animal.