3B Izaiah Miles

3. decomposition with production of ammonia or ammonium compounds
4. Plants can change carbon dioxide to carbohydrates by
7. the chemical element with the symbol N and atomic number 7.
9. a periodically repeated sequence of events
10. the process of converting (ammonia or another nitrogen compound) into nitrites or nitrates.
12. 97% of the earth's water is
15. the falling to earth of any form of water
17. This is the largest reservoir of carbon on Earth.
18. the emission of water vapor from the leaves of plants
19. They constitute a large domain of prokaryotic microorganisms.

1. Plants and animals need this element to make DNA, amino acids and proteins.
2. a chemical process by which molecular nitrogen (N 2) in the air is converted into ammonia
5. the process of removing the nitrates or nitrites from (soil, air, or water) by chemical reduction.
6. the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment.
8. Most of water on Earth is
11. a biogeochemical process through which nitrogen is converted into many forms
13. change into gas or steam
14. the continuous movement of water on, above and below the surface of the Earth.
16. A chemical element that is essential to all living things