Across
- 4. rain,snow,sleet, or hail
- 8. Process in which vapor turns into water
- 11. helps plants to grow in
- 14. bacteria that breaks down organic matter
- 15. the downward entry of water in soil or rocks
Down
- 1. the process that water evaporates form a plant
- 2. Animals need nitrogen to produce
- 3. what occurs when fertilizer runoff causes excess algae and water weed
- 5. sun what powers the water cycle
- 6. Process in which a liquid turns into a gas
- 7. prokaryote that is responsible for "fixing" nitrogen
- 9. Large organic molecule containing nitrogen that contains your genetic information
- 10. what molecule is produced when nitrogen is fixed
- 12. our atmosphere contain 78% free
- 13. animals get nitrogen into there systems by