1. Why did the early mining companies fail to protect the miners from the lead in the gold dust?
A. They were only interested in making money.
B. They did not know that the dust was dangerous.
c. They were more concerned with supplying the local villages
with water.
D. It was impossible to remove the lead.

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.