(mc)which of these changes took place in the first two decades of the 20th century?   the united states went from being a net exporter to being a net importer.  the industrial workforce went from minority unionized to majority unionized.  the majority of the u. s. population lived in urban areas instead of rural areas.  the u. s. government moved from running a budget surplus to running a budget deficit.

The correct answer is B) the industrial workforce from minority unionized to majority unionized.

The changes that took place in the first two decades of the 20th century were that the industrial workforce from minority unionized to majority unionized.

What happened during this time is that the workplace lacked many considerations for the workers. It had only major advantages for employers and owners. So in order to balance the situation and improve the working conditions of the workers, the labor movement in America grew in dimension and influence during the first two decades of the 20th century.  Labor wanted to protect the interests of the labor force. The plea was for better wages, better working conditions, and reasonable hours at work.

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.

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