Establishment of a communist society, namely a socioeconomic order structured upon the ideas of common ownership of the means of production and the absence of social classes and money
The main way in which the railroads contributed to the end of the large buffalo herds was that "The railroad tracks were obstacles that the buffalo would not cross". It sounds silly, but the buffalo actually refused to cross the tracks for reasons that are still misunderstood.<span />
Humans use lots of water.
The correct answer is:
B) Satrapies.
Satrapies were the provinces of the Persian Empire, and they were governed by governors called satraps.
