Why was the formation of labor unions an effect of industrialization in the late 1800s? A. Unions were needed to guarantee a steady supply of workers
B. Union membership was required for employment in new industries
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C. Factory owners set up labor unions in order to control their large workforce
D. Unions organized industrial workers to protest unsafe working conditions and long workday

Dalton developed the first model of the atom that showed the structure of the inside of an atom

Who did the first work in creating vaccines

Which of the following statements about the fugitive slave act of 1850 is not accurate. a. marshals who refused to arrest a suspected fugitive could be fined $1,000. b. slave owners had to present evidence that an african american in the north was a fugitive slave. c. any person who provided food or shelter to a fugitive slave could be find $1000 and placed in jail for six months. d. it required all federal marshals to arrest any african-american suspected of being a runaway slave.