Why was the iron curtain a problem? it prevented the allies from knowing what the soviets were up to. the soviets were participating in the cold war. it blockaded access to berlin. it separated north and south korea.

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.