Which of the following organizations was one of the largest unions in the 1800s and fought for an eight-hour workday

Which statement best explains how the invention of corporations contributed to the economy in the 1800's

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

Turkey a: nato b: warsaw pact c: not a member of either alliance