Day 12

2. chemical element with symbol C and atomic number 6
6. a mineral that actually occurs in many foods and is also available as a supplament
9. the act or process of ammoniating
10. the movement of nutrients and other element between biotic and abiotic factors
13. happens when liquid turns into gas
14. process of plants removing water from the soil and expelling it to the atmosphere
15. an onium cation obtained by protonation of ammonia
16. mass of any element at the beginning of a reaction will eqaul the mass of the element
17. checical process that converts atmospheric nitrogen into ammonia
18. any liquid or frozen water that forms in the atmosphere and falls back to earth

1. environmental change caused by people, either directly or indirectly
3. the process of the combining,mixing, or filing with nitrogen or one of its compounds
4. when anything solid turn into gas without first becoming liquid
5. the process where water vapor becomes liquid
7. element that exists in nature and can be found in soil,plants,foods, and water
8. chemical element, has symbol N and atomic number 7
11. an organism that takes inorganic chemicals and transforms it into energy
12. a substance that provides nourishment essential for growth