| A | B |
|---|
| salinization | accumulation of salts in the soil |
| organic farming | raising crops without using many synthetic pesticides or fertilizers |
| resistance | changes in the genetic makeup of pest populations that result in the ability of an organism to tolerate pesticides |
| biological pest control | one example of this would be spraying Bacillus thuringensis |
| erosion | loss of fertile soil when it is blown away by wind or washed away by water |
| soil conservation | using methods such as contour plowing, fertilizing with compost, and no-till farming |
| topsoil | upper layer of soil consisting of rock particles,water, air, and organic matter |
| yield | the amount of a crop produced per hectare (or acre) |
| malnutrition | health problem caused by not eating enough necessary nutrients |
| famine | widespread food shortage that results in many people not having enough food |
| fungus | decomposer of organic matter in topsoil |
| pathogen | general term for a disease causing organism |
| lipid | nutrient that may be stored and later utilized in energy production |
| carbamate | type of synthetic pesticide |
| amaranth | an older plant that produces a protein-rich fruit |
| pheromone | chemical produced by one organism that affects the behavior of another |
| subsistence farming | crop production that is limited to meeting one family's needs |
| arable | land on which crops can be grown |
