| Flap 1 | Flap 2 |
| Commute | to travel to work |
| megalopolis | a number of cities and suburbs that blend into one urban area |
| population density | the average number of people per square mile or square kilometer |
| petrochemical | a substance such as plastic or paint that is made from petroleum |
| industialization | the process of building new industries in an area dominated by farming |
| sun belt | an area of the united states streching from the southern atlantic coast to the california coast |
| mixed-crop farm | a farm that grows several dikfferent kinds of crops |
| recession | a decline in business activity or economic prosperity |
| corprorite farm | a large farm that is run by a corporation, or an agricultural company |
| forty-niner | a nickname for a miner who took part in the California gold rush of 1849 |
| responsible development | balanceing the needs of the enviornment, community, and economy |
| mass transit | a system of subways, buses, and comuter trains used to transport large number of people |
| totem pole | a tall, carved pole containing symbols of a particular Native American group, clan, or family |
| boom town | a settlement that springs up quickly to serve the needs of miners |
| Exile | to force someone to leave his or her native land or home |
| maritime | having to do with navigation or shipping on the sea |
| aquaculture | the cultivation of fish or water plants |
| aurora borealis | the colorful bands of light that can be seen in the sky of the Northern Hemisphere |
| Inukitiut | the native language of the inuit |
