Across
- 4. Phase that creates clouds
- 5. The product of respiration
- 7. The other part of the Carbon Cycle
- 8. One of two parts of the Carbon Cycle
- 9. Nitrogen must be converted into a useful form by this
- 11. Plants use nitrogen to make this
Down
- 1. This cycle deals with the combustion of fossil fuels
- 2. Something that plankton release in the ocean
- 3. These put carbon back into the soil by breaking down dead animals or plants
- 6. Step in the nitrogen cycle where bacteria convert nitrates back into nitrogen gas
- 10. Most nutrients make their way into lakes, rivers, and streams during this phase of the water cycle