A bunch of Scandinavian warriors and merchants, who were actually called Varangians, started expanding into Russia during this time, subduing the local Slavic tribes & forming the Kievan Rus.
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<h3>I can answer the question of the similarities between Africa and South America. The similarities are that both South America and Africa have many forests, including rainforests. Both America and Africa have similar animals. </h3>
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polar region
High latitudes are dominated by floating sea ice covering much of the Arctic ocean in the north, and by the Antarctic ice sheet on the continent of Antarctica in the South.