<span>Russia was divided into four socialist republics which established the USSR on December 30th, 1922. The republics were the Russian and Transcaucasian Soviet Federated Socialist Republics and the Ukrainian and Belorussian Soviet Socialist Republics.</span>
Answer: The yellow river is located at (LETTER B) The structure built to keep out the northern barbarians was called the (Great Wall) and is located at (LETTER C) The Silk Road is located at (LETTER A)
