<em>Answer:</em>
<em>Social Darwinism</em>
<em>Explanation:</em>
<em> Social Darwinism was the name of the belief system that considered the wealth to be a measure of "fitness".</em>
The correct answer is mass production of automobiles.
Explanation: The United States story periods between 1918 and 1945
It is marked by a period of great economic growth. By the end of the 1920s, however, the United States would enter a major period of economic recession, marked by high unemployment, misery and deflation, which would extend throughout the 1930s, and the negative effects of which have shaken many other countries. worldwide. In 1941, with the Japanese attack on Pearl Harbor, the United States would enter World War II, thus marking the end of the Great Depression. The war would end in 1945, and with its end, the United States would become one of the two great world superpowers, the other being the Soviet Union.
Because of new ideas & inventions
