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Across 2. Rain is an example of this process. 3. Common term for coal,oil,peat and natural gas. 5. Process of water converting to vapor. 7. Process of breathing that producing carbon dioxide. 8. Breaking down of wastes and dead organisms 10. Place where groundwater flow is stored. 11. Form of nitrogen, that can be used by non legume plants.

Down 1. The process by which plants use carbon dioxide to produce oxygen. 4. Major storage point for carbon dioxide 6. State in which nitrogen is stored after deamination. 9. Type of system the water cycle is.