How did the growth of the railroads affect supply and demand for natural resources in the united states?

The correct answer is C) the growth of the railroads increased the demand for natural resources.

The growth of the railroads affected the supply and demand for natural resources in the United States in that the growth of the railroads increased the demand for natural resources.

Railroad transportation changed the way American people traded. For instance, agriculture products were transported easily throughout the country. Meatpacking industry also benefited a lot. Natural resources such as coal became more available in all the country due to the railroad expansion. Railroad increased the demand for natural resources because railroads facilitated its transportation. The Steel industry also benefited with the railroads.  

The other options of the question were, a) decreased the supply of natural resources, b) decreased the demand for natural resources, and d) had no effect on the supply of natural resources.  

relations between the soviet union and the united states were driven by a complex interplay of ideological, political, and economic factors, which led to shifts between cautious cooperation and often bitter superpower rivalry over the years. the distinct differences in the political systems of the two countries often prevented them from reaching a mutual understanding on key policy issues and even, as in the case of the cuban missile crisis, brought them to the brink of war.

the united states government was initially hostile to the soviet leaders for taking russia out of world war i and was opposed to a state ideologically based on communism. although the united states embarked on a famine relief program in the soviet union in the early 1920s and american businessmen established commercial ties there during the period of the new economic policy (1921–29), the two countries did not establish diplomatic relations until 1933. by that time, the totalitarian nature of joseph stalin's regime presented an insurmountable obstacle to friendly relations with the west. although world war ii brought the two countries into alliance, based on the common aim of defeating nazi germany, the soviet union's aggressive, antidemocratic policy toward eastern europe had created tensions even before the war ended.