| A | B |
| loess | a type of rich, dustlike soil found on the North European Plain |
| hydroelectric power | the power generated by water-driven turbines |
| fossil fuel | fuel developed from the remains of ancient animals; includes coal, oil, and natural gas |
| reserves | available supply of something such as coal or oil |
| rain shadow | an area on the sheltered side of a mountain that receives little rainfall |
| prairie | an area of grassland |
| tundra | a treeless plain in Arctic Circle areas with permanently frozen ground; during the breif season when the topsoil thaws, grasses and mosses grow |
| permafrost | soil that is permanently frozen |
| taiga | an enormus Russian forest, covering more than three million acres |
| steppe | a mostly treeless plain; in Russia these are grasslands of fertile soil suitable for farming |
| polder | a new peice of land reclaimed from the sea; in the Netherlands, land created by building dikes and draining water |
| population density | the average number of people living in an area |
| peninsula | land area nearly surrounded by water |
| plateau | a large, raised area of mostly level land |
| tributary | a river or stream that flows into a larger river |
| navigable | wide enough and deep enough for ships to travel through |
| Europe | the world's second- smallest continent; a peninsula of the Eurasian landmass bounded by the Arctic Ocean, the Atlantic Ocean, the Mediterrenean Sea, and |
| Russia | a country in northern Eurasia |
| Eurasia | the landmass that includes the European and Asian continents |
| Ural Mountains | a mountain system in northern Eurasia forming part of the border between Europe and Asia |
| Alps | the major south- central European Mountain system; the range includes Mont Blanc and the Matterhorn |
| Siberia | a resource- rich region of Russia, extending east across northern Asia from the Ural Mountains to the Pacific coast |
| Barcelona | a city and seaport in Northeastern Spain |
| Irktutsk | a city in east- central Russia, on the CEntral Siberian Plateau |