6. Not all countries with aging populations resort to immigration to offset economic problems. An example is:
A. Germany.
B. Japan.
C. USA.
D. Norway

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939

this statement is   true

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.