Across
- 4. is water, from rain, snowmelt, or other sources, that flows over the land surface
- 7. is the process by which water vapor in the air is changed into liquid water
- 10. fuels when we burn things into the air that effects the amount of nitrogen in it
- 11. is when water changes from a liquid to a gas and moves into the clouds
- 12. cutting down trees that effects the water cycle
- 13. is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail.
- 16. is the process by which water on the ground surface enters the soil
- 17. decomposition with production of ammonia or ammonium compounds especially by the action of bacteria on nitrogenous organic matter.
Down
- 1. living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide
- 2. Fixation the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.
- 3. cycle the series of processes by which carbon compounds are inter-converted in the environment
- 5. cycle the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.
- 6. is when water moves through plants and into vapor
- 8. rapid chemical combination of a substance with oxygen, involving the production of heat and light
- 9. the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air
- 14. is the biologiical oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrogen
- 15. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
