Chapter 14 and 15

4. information system Computerized system for storing, manipulating, and viewing geographic data.
6. A condition that occurs when people do not consume enough calories or do not eat a sufficient variety of foods to fulfull all of the bodies needs
8. sprawl Rapid expansion of the city into the countryside around the city
9. Chemicals used to kill insects, weeds, and other crop pests
12. Surface layer of soil
14. Land that is covered mainly buildings and roads
16. Type and amount of food someone eats
17. Area in which land and ecosystem it supports are protected from all exploitation
18. Process by which land in arid or semi-arid areas becomes more desert like because of human activity or climate changes
20. island Increased temperature in the city
21. pest control Using living organisms to control pests
22. Process by which trees are planted to resestablish trees that have been cut down
25. Movement of people from rural areas to cities

1. Clearing of trees from an area without replacing them
2. Widespread starvation caused by shortage of food
3. services Resources that are produced by natural and artificial ecosystems
5. planning Determining in advance how land will be used
7. land Land that can be used for growing crops
10. Accumulation of salts in soil
11. Wearing away of rock or soil by wind and water
13. Allowing more animals to graze in an area than a range can support
15. engineering Technology in which genetic material in a living cell is modified for medical or industrial use
19. All the things a society builds for public use
22. Land that contains relatively few people and large areas of open space
23. Amount of food that can be produced in a given area
24. Partly decomposed organic matter