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1. What cycle moves from O2 -> Cellular Respiration -> CO2 -> Photosynthesis
2. What effects do fossil fuels have on the cycles of the planet, especially the Carbon Cycle?
3. What is a biogeochemical cycle?
4. What's the most abundant gas on earth?
5. What's the formula for water?
7. A plant sweating is like...
8. How do animals get Nitrogen into their bodies?
9. What's another name for the water cycle?
10. Which Cycle is the only one that does not have a gas phase at some point?
11. What is the only organism that can use Nitrogen and "fix" it?
12. An example of condensation is...
13. Rain, sleet, snow, and hail are examples of...
14. What gas does decay release?
15. Which cycle is known as the "building block of life?"