What conclusion can be drawn from the passage of the 13th, 14th, and 15th amendments to the u. s. constitution?

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.

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.