| A | B |
|---|
| volunteer | someone who does something by choice and without pay |
| citizen | a member of a community or a country |
| pollution | anything that spoils land, water, or air |
| community | a place made up of several neighborhoods where people live, work, and have fun together |
| rural | a community of farms and open country |
| urban | a community that includes a city and its surrounding areas |
| transportation | moving people and products from place to place |
| national park | land set aside by government for all people to enjoy |
| suburb | a community located near a city |
| culture | the way of life of a group of people |
