| A | B |
| Agribusiness | Firms that help farmers and ranchers |
| Biotechnology | Management of gentic characteristics |
| Organic food | Grown without pesticides |
| Air | Colorless odorless tasteless gas |
| Water | clear colorless tastesless liquid |
| Sulfur | pale yellow element |
| Nitrous oxides | Mixture of nitogen and oxygen |
| Carbon monoxide | Car gas |
| radon | colorless radioactive gas |
| Asbestos | heat and friction material |
| Tidewater | sea water that flows up a river |
| Saturated water | All pores of soil filled |
| Gravitation water | Water that has drained out of soil |
| Capillary water | water that plant can use |
| Residual | parent material in place |
| Alluvial | soil made by running water |
| Loess | soil made by wind |
| colluvial | Soil by gravity |
| glacial | soil made by ice |
| Horizon | soil layers |