Which was an argument used by opponents of the u. s. constitution against its ratification? a. there is no system of checks and balances. b. the federal government has too much power. c. the french king will not approve of it. d. congress has no authority to raise money.

About how many european immigrants were processed at the facilities on ellis island

What impact did company towns have on working conditions? company towns were ideal places to live because of the cheap prices of company stores. entertainment value in company towns made them attractions for those in rural areas. education provided by company towns workers to progress in the company. conditions in some towns indebted workers to trap them in the labor system.

Why do many scientists suppose the land bridge theory of migration?