<span>Roosevelt asserted American power with the Monroe Doctrine. It outlined the fact that the United States would not be controlled by European countries.</span>
The transcontinential railroad brought more money to the railroad companies because more people had access to the railroads, therefor using them more, and money was brought in. Not 100% sure, but that is my guess
Longevity in life and a brighter future for technology
Answer:
Women and people of all races may now be able to vote equal to a wealthy white man.