| A | B |
| natural resources | people use resources found in nature |
| non renewable | resources that cannot be replaced if used up |
| renewable | resources that can be replaced or grown again |
| coal, oil, and natural gas | fossil fuels that take millions of years to be made |
| metals and minerals | examples of non renewable resources |
| wind | renewable resource |
| trees | renewable resource |
| fish | renewable resource |
| solar | energy from the sun |
| nuclear | energy from an atomic reaction |
| tariff | tax placed on imported goods by some countries |
| export | a good "carried out" of a country to trade with another country |
| import | a good "carried into" a country for purchase |
| quota | an obstacle to trade because there is a limit on how many of a particular good can be brought into a country |
| free trade | unlimited and non-restrictive trade |
| developed country | a country that has high industrialization |
| developing country | a country working toward increasing its industrialization |
| NAFTA | North American Free Trade Alliance between Canada, USA, and Mexico |
| EU | European Union Free Trade Alliance |
| economy | the careful management of resources and the production and distribution of goods and services |
| market | the type of economy used in the USA |
| mixed | the most popular type of economy used in the world |
| command | the type of economy that is controlled by the government |
| port | this root word means "carry" |