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test questions

hydroelectric power electrical energy generdated by fallin water.
permafrost permently frozen layer of soil beneath the surface of the ground.
ethnic group group of people who share common ancestry,language,religion,customs,or combination of such characteristics.
soverignty self rule.
serf laborer oblidged to remain on the land where he or she works.
cold war power stuggle between the soviet union and the united states after world war 2.
communism society based on equality in which workers would control industrial production.
athelism the belife that there is no god.
czar ruler of russia until the 1917 revolution.
taiga russian term for the vast subartic forest,mostly evergreens that cover much of russia and siberia.