Across
- 3. leaking of gas or liquid through porous materials
- 5. Triple oxygen molecule that absorbs radiation
- 7. Process changing Nitrates into inert N2 Gas
- 8. Bacteria living symbiotically with some plants., taking nitrogen from the air.
- 10. Mythical Creature from Lord of the Rings that is a stand-in for Radiation from the sun
- 12. point of eruption for hot gases and liquid rocks from inside the Earth
- 13. Longest coldest period of Earths History with Ages lasting over 15 to 300 million years
- 19. Process changing Ammonium and Ammonia into Nitrites and Nitrates
- 20. An Ionized Nitrogen compound, toxic to humans
- 22. single-cell photosynthesizing ocean creatures
- 23. Second Eon of Earth
- 24. Water lost to respiration by plants and animals
- 25. Changing directly from a solid to a gas
- 27. Breaking down chemicals (hydrogen Sulfides) for energy for life processes
- 28. Gasses release by Industrial and Geological processes
Down
- 1. any small particle materials
- 2. Any solid or liquid condensation falling from the sky
- 4. Changing from a liquid to a gas
- 5. The massive die off of Hydrogen Sulfide eating bacteria due to oxygen poisoning
- 6. Space in the roots of some plants that hosts Nitrogen-fixing bacteria
- 9. The initial reaction between Oxygen and Iron in Early Earths Oceans
- 11. Water moving through small, loose particles
- 14. Water forcing its way into soil
- 15. Particle that makes up the energy of light
- 16. Grouping of similar climate, animal, and plants species
- 17. Colonies of Oxygen producing bacteria
- 18. Using Energy from sunlight to store chemical energy to drive life processes
- 20. Mass production of food for urban dwelling humans
- 21. Biome with moderate range of temperatures
- 26. Important Wizard from Lord of the Rings, that acts like our Ozone Layer