| nitrates | | producers such as algae and plants take up CO2 from air or water to manufacture carbohydrates for us to eat and Oxygenfor us to breathe. |
| Lightning | | loss of water from the leaves and stems of plants |
| respiration | | these break down animal wastes and dead organisms to recycle the elements. |
| decomposers | | 78 percent of our atmosphere |
| carboncycle | | the movement of carbon through the environment |
| Bacteria | | CO2 traps infrared radiation; if CO2 levels continue to rise we will have severe... |
| fossilfuel | | energy-rich carbon compound formed from organic matter by long-term geologic processes; example = petroleum |
| AminoAcids | | the building blocks of proteins; these molecules contain Nitrogen |
| nitrogengas | | this event can directly convert N2 in the air to NO3 - ; the NO3 - dissolves in rainwater and goes to the soil. |
| photosynthesis | | These are nitrogen-fixing____ ; some convert N2 from the air to ammonia; others convert ammonia to nitrates.. |
| Transpiration | | O2 from air and glucose from food react inside our cells to produce CO2 and H2O; sort of the reverse process of photosynthesis |
| globalwarming | | Can be absorbed in the plant roots; used to make amino acids. |