Across
- 3. The xylem of tree stems provides fiber for making
- 5. Tree farms are largely located in what part of the country?
- 6. What type of pollution would agriculture cause?
- 10. What can be used to fight weeds that is not herbicide?
- 11. Plants that reproduce sexually have
- 14. The substance that kills plants is called
- 15. The type of resources that can be replaced
- 16. The male part of a flower is called
- 18. Honeybees are particularly adept at
- 19. Formations in sand, rock, or gravel that hold water are
- 20. Plants have been bred to be resistant to what?
Down
- 1. Johnsongrass is considered to be a
- 2. Every year cropland is prepared for
- 3. Organisms that live on other organisms and harm them are called
- 4. What type of trees produce more oxygen?
- 7. What type of what is in streams, lakes and oceans?
- 8. Which state leads in Forestry?
- 9. What is the management and growing of trees?
- 12. The reason for certain types of trees dominate a region is because of a natural process called
- 13. At the very tip of the stem is a small knob called the
- 17. What is the wearing away of soil by wind, rain and other means?