d. i think hope this helps plz make me brainliest
Answer:
Beginning in the early 1870s, railroad construction in the United States increased dramatically. ... Between 1871 and 1900, another 170,000 miles were added to the nation's growing railroad system. Much of the growth can be attributed to the building of the transcontinental railroads.
Explanation:
The Civil War was the defining event for nineteenth-century America, and railroads played an important role in the conflict. As the North industrialized rapidly between 1820 and 1860, railroads helped create --and prospered from -- the rise of factory production and diversified large-scale agriculture.
Answer:
The answer is 159,000 rounded to the thousands.
Answer:
The four main objectives of U.S. foreign policy are the protection of the United States and its citizens and allies, the assurance of continuing access to international resources and markets, the preservation of a balance of power in the world, and the protection of human rights and democracy.
Explanation:
Actually, no less a student of the United States than Andrei Gromyko once remarked that Americans have "too many doctrines and concepts proclaimed at different times" and so are unable to pursue "a solid, coherent, and consistent policy." Only recall the precepts laid down in Washington's Farewell Address and Jefferson's inaugurals, the speeches of John Quincy Adams, the Monroe Doctrine with its Polk, Olney, and Roosevelt Corollaries, Manifest Destiny, the Open Door, Wilson's Fourteen Points, Franklin Roosevelt's wartime speeches and policies, Containment in all its varieties, Nixon's détente, Carter's Notre Dame speech, Clinton's enlargement, and the Truman, Eisenhower, Nixon, Carter, and Reagan Doctrines. Far from hurling the country into a state of anomie, the end of the Cold War has revealed anew the conceptual opulence that has cluttered American thinking throughout this century.
(Back to Bedrock: The Eight Traditions of American Statecraft)