In the second half of the 19th century, the u. s. government allowed more immigrants into the country mainly because a) more soldiers were needed in the american military. b) industries needed an increasing amount of cheap labor. c) the world war in europe was causing millions to flee their homelands. d) western territories needed more settlers to explore for gold and silver.

B) industries needed an increasing amount of cheap labor.  

B)industries needed an increasing amount of cheap labor.

Because industries needed an increasing amount of cheap labor, more immigrants were allowed in the late 19th century America. Most came from central, southern, and eastern Europe, settling in big cities which were home to growing numbers of factories.

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