Relacionar Columnas Russia and Central Asia VocabularyVersión en línea Russia and Central Asia Vocabulary por Raymond Smith 1 Irrigate 2 Ural Mountains 3 Tundra 4 Chernozem 5 Permafrost Rich, black soil found in the Northern European Plain, especially Russia and Ukraine The boundary between Europe and Asia The process of collecting water and using it to water crops Ground that is permanently frozen A vast treeless plain in the artic regions between the ice cap and the tree line