| A | B |
|---|
| centrifugal force | a force that divides people and countries |
| biodiversity | the variety of plants and animals living in one area. The term can also mean the great variety of all living things on Earth |
| centripetal force | a force that unites people and countries |
| rural decline | worsening economic conditions in the country-side, including raising unemployment and growing poverty |
| ecosystem | a community of al the living things in an area and the environment in which they live |
| standard of living | the overall level of comfort and well-being of a group or a country |
| common market | a group of countries that acts as a single market, without trade bariers between member countries |
| deforestation | removing or clearing away the trees from a forest, often to clear land for farming or ranching |
| urbanization | the movement of people from rural to urban areas, resulting in the growth of urban areas |
| supranational cooperations | a form of international cooperations in which countries give up some control of their affairs as they work togeter to achieve a shared goal |
| ecumene | a geographic region that is well suited for permanent settlement by people |
| tropical rainforest | a broadleaf evergreen forest found in wet and hot regions near the equator |
| plural society | a society in which different cultural groups keep their own identity, beliefs and traditions |
| watershed | a geographic area that includes all of the land and waterways that drain into a body of water, sometimes called a drainage basin |
| absolute location | the precise point where a place is located on Earth |
| food chain | a series of plants and animals, each of which depends on the one below it for food, usuall formign part of a much larger food web |
| distortion | a change in the shape, size or position of a place when it is shown on a map |
| map projection | a way of representing the spherical Earth on a flat surface |
