Across
- 2. a Pennsylvanian who created Bird Day
- 5. created the Society of American Foresters
- 6. important book showing the dangers of insecticides and pesticides
- 8. a name people used in the 1800s for Pittsburgh because of all of the pollution
- 10. the number of people that live in a particular place
- 13. a conservationist who lived in Pennsylvania and illustrated and published books about birds
- 15. a raptor that was nearly extinct, but was reintroduced and has recovered in PA
- 16. the study of plants
Down
- 1. the river that was polluted by the Ashland Oil Company tank collapse in 1988
- 3. Pennsylvania's state bird
- 4. all the work done to save our natural resources
- 7. founder of forestry in PA
- 9. a very influential conservationist from PA
- 11. another word for wildlife
- 12. a location that is polluted that requires long-term cleanup
- 14. scientist who studies birds
- 15. law created in 1905 to regulate water pollution