| A | B |
|---|
| service industry | business, finance, banking, and insurance |
| coral reef | low lying structures formed over time from the skeletons of small sea animals |
| acid rain | air pollution that mixes with water vapor and falls to the earth as rain or snow |
| rural | sparsely populated |
| free enterprise system | people own and run businesses |
| national park | a park set aside for recreation and for protection of wilderness and wildlife |
| mobile | move from place to place |
| multicultural | a country that has many different cultures |
| ethnic group | a group of people who share a common culture |
| republic | a form of government in which the people elect their own officials |
| revolution | sudden political change |
| urban | densely populated |
| contiguous | joined together |
| interdependent | countries that rely on each other |
| dry farming | a way of plowing land so that it holds rainwater |
| colony | overseas settlement tied to a parent country |
| farm belt | area that is flat and fertile and covers most of the midwest |
| immigrant | a person who move from another country |
| megalopolis | super city, many cities |
