Chapter 15- Food and Agriculture

3. domesticated animals that are raised to be used on a farm or ranch to be sold for a profit
5. the raising of aquatic plants and animals for human use or consumption
6. the surface layer of the soil, which is usually richer in organic matter than the subsoil is
12. a disorder of nutrition that results when a person does not consume enough of each of the nutrients that are needed by the human body
13. the accumulation of salts in soil
14. a mixture of decomposing organic matter, such as manure and rotting plants, that is used as fertilizer and soil conditioner
15. farmland that can be used to grow crops
16. the type and amount of food that a person eats
17. a cud-chewing mammal that has a three or four chambered stomach; examples include sheep, goats and cattle
18. the process in which the material's of Earth's surface are loosened, dissolved, or worn away and transported from one place to another

1. the amount of crops produced per unit area
2. the use of certain organisms by humans to eliminate or control pests
4. widespread malnutrition and starvation in an area due to a shortage of food, usually caused by a catastrophic event
7. a poison used to destroy pests, such as insects, rodents or weeds
8. catching or removing from a population more organisms than the population can replace
9. describes organisms that have been bred and managed for human use
10. the process by which human activities or climatic changes make arid or semiarid areas more desert-like
11. a technology in which the genome of a living cell is modified for medical or industrial use