The Russians had turned to a Market system.
The international division of labor - specialization of individual countries in the production of certain products.The international division of labor based on the differences between the countries in the natural and climatic conditions, geographical location, natural resources and energy sources.At the same time the world united in a single trade and economic system that allows you to share the most products with each other.
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This consists of pebbly beds associated with ancient blown sands, sometimes of considerable thickness. Above this series of deposits comes the Head or Rubble Drift, formed during a greater elevation of the land.
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A Alfred Wegener is the one who theorized that 200 million years ago Earth’s continents were connected as a supercontinent called Pangaea.