Biochemical Cycle

1. Amonnium

1.1. colourless gas with a characteristically pungent smell

1.1.1. easily liquefied

1.1.1.1. boils at −33.3 °C

1.1.1.1.1. freezes to white crystals at −77.7 °C

2. Organic Matter

2.1. influences soil structure and its properties

2.1.1. soil organic matter affects the cation exchange capacity and the capacity for buffering changes in soil pH

3. nitrates

3.1. Molecular Weight: 62.005 g/mol

3.1.1. non-metal nitrates

3.1.1.1. readily ignited when in contact with organic materials

3.1.1.1.1. Molecular Formula: NO3(−) or NO3-

4. eutrophication

4.1. nutrient enrichment

4.1.1. temperature, salinity, carbon dioxide, element balance influence eutrophication

4.1.1.1. is when a body of water becomes overly enriched with minerals and nutrients

5. mineralization

5.1. process where an inorganic substance precipitates in an organic matrix