Across
- 5. The movement of nitrogen from the nonliving environment into living things and back again
- 6. Section of land above the water table, containing both earth and air where the ground is not completely saturated
- 10. conversion of nitrate to nitrogen gas, which is released back into the atmosphere.
- 12. All the Earth's water in the ground, on the surface, and in the air
- 13. Total sets of greenhouse gas emissions (CO2) caused by an organization, event, product or individual over a set period of time.
- 14. Underground area “boundary” between where the Earth's surface is saturated with water and the area that is not saturated. Between the zones
- 17. Water stored in underground caverns or porous rock
- 18. Process when oxygen and glucose are used to release energy. Carbon dioxide and water are produced.
- 19. movement and filtration of water through soil or rock layers
- 21. Process by which water vapor in the air becomes liquid
- 24. absorption of nitrogen into organic compounds by plants (absorbed through roots).
- 27. Breakdown of dead materials into carbon dioxide and water
- 29. Water that moves from the atmosphere to the land and ocean, including rain, snow, sleet, and hail
- 30. occurs when ice and snow change directly to water vapor. This also happens because of heat from the sun.
Down
- 1. Area below a water table, where groundwater saturates the rocks and soil
- 2. Cycle The movement of water between the oceans and lakes, atmosphere, land, and living things.
- 3. process by which bacteria in the soil convert nitrogen into ammonia, which is a nutrient for all green plants.
- 4. Movement of surface water over land leading to rivers, streams, lakes and eventually oceans
- 7. Change of state from a liquid to a gas/vapor
- 8. Outer, solid portion of the Earth
- 9. Bacteria that convert nitrogen gas from the atmosphere into a form that plants can use Process of nitrogen fixation
- 11. A mixture of gases that surrounds a planet, such as Earth
- 15. production of ammonia by bacteria during the decay of organic matter.
- 16. Use of resources in such a manner that they will never be exhausted or used up
- 20. Evaporation of water from plants through leaves
- 22. Burning of fossil fuels
- 23. Area or ecosystem that absorbs more carbon dioxide than it releases...example - forest
- 25. form of nitrogen that dissolves very easily in water; plays important role in nitrogen cycle
- 26. The movement of carbon from the nonliving environment into living things and then back to the nonliving environment.
- 28. production of nitrates and nitrites from ammonia (NO3). Bacteria are responsible for nitrification. Plants can use nitrates and nitrites to make proteins.