What is the reason why the soviet union blockaded west berlin in 1948?

On edge its , to force the city to turn to the Soviet Union for support.

explanation:

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the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.