The answer is a because interchangeable parts made everything be a lot more easy to take apart becuase instead of everything be made of one part they had multiple parts
About 50 percent of federal revenue comes from individual income taxes, 7 percent from corporate income taxes, and another 36 percent from payroll taxes that fund social insurance programs . The rest comes from a mix of sources.
Both Andrew Carnegie Mellon and Henry Clay Frick were industrialists and business partners. Carnegie produced steel and Frick manufactured coke (necessary to produce steel). Frick eventually became chairman of Carnegie's company, but Carnegie made several attempts to force him to renounce to his position and disregarded him, and his opinions, on numerous occasions. This is, therefore, an example of the tensions that the industrialization of the U.S. entailed (there were companies that merged with, or sometimes bought, other companies; companies that used black workers and convicts as labor; companies whose workers went on strike; and hostility towards the wealthy industrialists as well as between them).
A: Spain, Portugal, Italy, Germany, Great Britain, Holland, Belgium and France.
B: The action is that they are all tugging on Africa.
C: The cartoonist is trying to make the point that all of these countries are fighting to control Africa.
-TTL
Yes, it is true that historians believe that the time from prehistory to the development of agriculture spans more than two million years, since it is thought that humans first appeared on Earth roughly six millions years ago.