Based on the questions you've provided:
Question 1: The main purpose of the propaganda from the World War I era was likely to encourage eligible Americans to become soldiers.
Question 2: The two correct answers that led to a significant increase in the number of factory jobs available to African American workers during World War I are:
- increased production of war materials
- a reduction in the number of European immigrants
Question 3: The two correct answers regarding the negotiations between the federal government and the American Federation of Labor are:
- Workers agreed to a “no-strike pledge” for the duration of the war.
- The government protected workers’ rights to organize.
Question 4: The law Congress passed to prohibit any criticism or disloyal language against the federal government was the Sedition Act of 1918.