<span>A. the relationship between the size of a certain area and the number of people who live there</span>
Answer:
The Second Industrial Revolution in USA was the time period between 1870 to 1914. During that time there was a revolutionary change in the electronic and technological spheres which caused the second industrial revolution.
During the second Industrial revolution there was a massive affect of rail roads on the cities. The key reason of growing rail road was the easy transportation system. Previously used the naval roads by the ships were expensive and time killing. But the use of railroad was less expensive and much time saving. As a result during the Second Industrial Revolution railroads had a great affect on transport system which accelerated the industrial revolution.
Moreover, the use of steel instead of iron to make the railroads was a major reason which made easy to construct railroads in a competitive way. the use of steel made expenses less than the iron.Even the railroads became more strong than the previous time. These advancements helped the railroads to affect on the cities for faster transportation during the Second Industrial Revolution.
Explanation:
Towards the end of World War II, Raphael Lemkin, a lawyer of Polish-Jewish descent, aggressively pursued within the halls of the United Nations and the United States government the recognition of genocide as a crime. Largely due to his efforts and the support of his lobby, the United Nations was propelled into action. In response to Lemkin's arguments, the United Nations adopted the term in 1948 when it passed the "Prevention and Punishment of the Crime of Genocide".
<span> They used rivers and streams for fishing, used trees to make shelter and canoes, and they were able to farm the fertile land.
Hope this helps.</span>