Across
- 3. derived from living matter
- 6. a person seeking to protect the environment
- 9. the natural environment of an animal or plant
- 10. a way of earning enough money to live on
Down
- 1. reduce to a minimum
- 2. preservation of natural environment
- 4. create or produce
- 5. study of animals
- 7. try to deal with a difficult task
- 8. not fertile