Across
- 4. a substance or thing that has harmful or
- 5. the process or industry of obtaining coal or other
- 7. practice of farming
- 8. preparing the timber.
- 11. effects.
- 13. an individual animal, plant, or single-celled life
- 15. the activity of catching fish, either for food or as a
- 16. an area of low-lying, uncultivated ground
- 17. a source of supply
- 18. the natural home or environment of an animal,
- 19. or other organism.
Down
- 1. the presence in or introduction into the environment
- 2. from a mine.
- 3. the activity or business of felling trees and cutting
- 6. a large body of water
- 9. something that is usual, typical, or standard.
- 10. a large area of trees
- 12. a person's principles or standards of behavior.
- 14. the job of supervising or taking care of something.
