Answer:
The Emancipation Proclamation stated that African-American men willing to fight "will be received into the armed service of the United States." After the Emancipation Proclamation, blacks rushed to joined the Union Army. At the end of the war, there were nearly 180,000 black soldiers in the Union Army.A significant number of African-American regiments were formed by the end of the war, and participated actively in several battles. African Americans suffered tremendous casualty rates, partly because the South refused to accept them as prisoners; most captured blacks were killed outright. Black Americans also did many non-combat jobs for the military and for industry.
Explanation:
Im sure It is B :) hope it helps
U.S production plummeted
U.S inventors didn't have enough money to invent
<span />
The correct answer for this question is this one: "B) widespread use of public transportation." Prior to WWII, people living in cities in the United States enjoyed widespread use of public transportation.
Here are the following choices:A) a housing boom.
B) widespread use of public transportation.
C) increasing quality of public housing.
D) improving air quality.