Booker T. Washington_?

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

it met the katy line in vinita.

iv. it traveled through cherokee and quapaw tribal lands.

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.