Across
- 4. A system formed by the interaction of living and non-living things.
- 7. No longer existing anywhere on Earth.
- 8. At serious risk of extinction.
- 10. The natural home of a living organism.
Down
- 1. An animal that hunts and eats other animals.
- 2. Bringing back a species into its former habitat.
- 3. A state of stability in nature where species and environment support each other.
- 5. The animal that is hunted by another for food.
- 6. The act of protecting and preserving nature and wildlife.
- 9. A public disagreement or heated debate.