| A | B |
|---|
| respiration | C6H12O6 +6O2 --> 6H20+ 6CO2+ Energy |
| Photosynthesis | 6CO2+ H20 + Sunlight--> C6H12O6 +6O2 |
| Evaporation | water is converted into water vapor |
| transpiration | water is evaporated from the leaves of plants |
| glucose | C6H12O6 |
| legumes | plants that contain root nodules, in which nitrogen fixing bacteria reside |
| nitrates (NO3) | the type of nitrogen that can be used by a plant |
| Nitrites | type of nitrogen in soil that must be converted so plants can use it |
| N2 | Nitrogen in the air |
| Nitrogen fixing bacteria | Can take nitrogen in the air and convert it into nitrogen in the soil |
| Denitrification | Nitrates changed into nitrogen gas by bacteria |
| Combustion | Burning (wood or fossil fuels) |
| fossil fuels | Fossilized Plants and animals--Can be burned to provide energy and releases CO2 |
| nitrogen fixation | atmospheric nitrogen becoming fixed into a nitrogen compound in the soil |
