Across
- 4. an animal environment
- 6. a group of the breed of animals
- 7. an animal species that no longer exist
- 8. Pollution is harming it
- 9. prevention of wasteful use of a resource
- 10. a low amount of an animal species
Down
- 1. Butterflies pesticides being found in food
- 2. being contaminated by pesticides
- 3. exposing harmful substances into nature
- 5. cutting down a large amount of trees