Across
- 3. The impact humans leave on an environment
- 4. Spilling contaminants into nature
- 7. Exceeding max capacity
- 10. Name one thing Overpopulation causes
- 12. name one renewable source
- 16. Benefiting off a natural resource (Poaching)
- 17. Wrote Sand county Almanac about management about wildlife
- 18. The study of the natural world and how we affect it.
- 19. pleasing to look at
- 20. Manage resources
- 21. Depletion of natural resources
Down
- 1. First directer of the U.S. Forest service
- 2. Name one thing pollution causes
- 5. made a national wildlife reserve for the Brown pelican
- 6. Variety of life in nature
- 8. protect nature from danger
- 9. wrote a book about pesticides.
- 11. Name one nonrenewable source
- 13. Vaccines,and anti-venom
- 14. Nature writer and established Yosemite National park
- 15. To keep the ecosystem in balance