How did qin shi huangdi unify china? what tactics did he use?

monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

read more on -

it provided for equal trade rights among nations in china.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.

on a flat and narrow coastal plain, between the foothills of the brazilian highlands and the atlantic ocean, on the shore of guanabara bay, in the state of rio de janeiro, brazil, the tropical zone in south america.