PLEASE HELP WILL MARK BRAINLIEST

Why were factories a good source of income? select all that apply. -they produce goods at an exceptionally fast pace. -they build a sense of community among workers. -they often employed low wage earners. -they employed women and children at disgracefully low wages. -labor unions to establish good working conditions.

Answerwho is the first goverment en united state

When conducting research for forming a hypothesis, which practice should historians follow?