| 1. |
a large area of land covered by grass |
| 3. |
planned and careful preservation of something, in particular resources or the environment |
| 5. |
a covering or other object that provides protection from the environment |
| 8. |
occurring at a later time |
| 9. |
a person engaged in the logging industry; a person who cuts down trees and transports timber to a mill |
| 10. |
woody stems growing off of the base of a tree |
| 12. |
the gas animals breathe or take in through lungs or gills and is necessary to sustain life |
| 15. |
the foliage of a tree or plant that is at the end of the branches |
| 18. |
a young plant grown from a seed |
| 19. |
the average span of time between the birth of parents and their offspring; in human beings it is approximately 30 years |