| A | B |
|---|
| air quality | the condition of the air based on the amount of pollution in it |
| volcano | a break in Earth’s crust where magma and other material erupts from Earth’s interior |
| basin | a bowl-shaped depression, or hollow, in Earth’s surface |
| communal land | land that is held in common by a group of people |
| estate | a sizable area of privately owned property with a large house |
| metropolitan area | a major population center made up of a large city and the smaller suburbs and towns that surround it |
| plaza | an open square or marketplace |
| pollution | damage to the natural environment caused by harmful substances; also refers to harmful substances |
| rural | found in or living in areas that are not close to cities |
| rural decline | worsening economic conditions in the countryside, including rising unemployment and growing poverty. Rural decline drives migration to cities. |
| slum | an overcrowded, dirty area of a city where the housing is usually in very poor condition |
| smog | a haze in the air caused by pollution, especially the exhaust from cars and other vehicles |
| spatial inequality | the unequal distribution of wealth or resources in a geographic area, so that some places are richer than others |
| standard of living | the overall level of comfort and well-being of a group or a country. |
| suburb | a developed area at the edge of a city that is mainly homes. Many suburbs also have stores and businesses. |
| tenement | a rundown apartment building |
| unemployment | joblessness - don't have a job |
| urbanization | the movement of people from rural to urban areas, resulting in the growth of urban areas |
| aqueduct | a pipe or channel built to transport water from one place to another |
