Explain the difference between trade and migration barriers

Which of the following american companies had a monopoly in the late 1800s?

The service industry in the united states grew in the late 1800s. what was one effect of that growth? the number of people with jobs in factories as unskilled workers decreased. the number of people with jobs in factories as unskilled workers increased. the middle class grew as people took jobs as clerks, lawyers, and teachers. the middle class shrank as people left jobs as clerks, lawyers, and teachers.

An antropologist studies a) the earth, rock forms, and strata b) the origins of words c) the lives of early communities by studying artifacts d) the development of language e) early human culture and development compared to the present day