...point How did American involvement help the Allies win World
War I?

American involvement helped the Allies win World War I because the American troops are numerous and assumed much of the burden on the battlefield. They fought in many large battles, and quickly learned how to fight on the front.

Explanation:

PLZ MARK :).

the answer is c. to explore the louisiana purchase

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.