Across
- 2. the surface layer of soil
- 5. the process by which land in arid or semiarid areas becomes more desert-like
- 7. domesticated animals that are raised to be used on a farm or ranch, or to be sold for profit
- 8. pest control, a form of pest management that uses living organisms to control pests
- 9. widespread starvation caused by a shortage of food
- 12. the raising of aquatic organisms for human use or consumption
- 13. chemicals used to kill insects, weeds, and other crop pests
- 16. the amount of food that can be produced in a given area
- 17. partly decomposed organic material
Down
- 1. chewing mammals that have three- or four-chambered stomachs
- 3. catching or removing from a population more organisms than the population can replace
- 4. the accumulation of salts in the soil
- 6. the movement of rock, soil, and sand by wind and water
- 10. a condition that occurs when people do not consume enough Calories or do not eat a sufficient variety of foods to fulfill all of the body's needs
- 11. animals and plants that have been bred and managed for human use
- 14. engineering, a technique in which genetic material in a living cell is modified for medical or industrial use
- 15. the type and amount of food that a person eats