Across
- 4. A substance that living things need to grow and stay healthy
- 8. A division of a larger organization responsible for specific tasks
- 9. The purpose or particular job of something
- 10. A system in which people or things are ranked by importance or authority
- 12. To talk too proudly about your achievements
- 14. The process of making a system or organization work
- 17. Belief about what should or is likely to happen
- 18. To explain the exact meaning of a word or concept
- 20. A community of living things interacting with their environment
- 21. To make an approximate calculation or judgment
Down
- 1. To add substances to soil to help plants grow
- 2. The release of gases or other substances into the air
- 3. The process of bringing something back to its original condition
- 5. change Long-term changes in Earth's temperatures and weather patterns
- 6. Unusual or impressive enough to deserve attention
- 7. The total number of people or organisms living in an area
- 11. Going from side to side rather than up and down
- 13. Going straight up and down rather than from side to side
- 15. Feeling stressed because of demands from others
- 16. Having exceptional natural talent or ability
- 19. Working well without wasting time, energy, or resources