Persian empire<span> was the largest empire that the </span>ancient<span> world had seen</span>
Answer:
Rail communication between Texas and the rest of the United States was insufficient during most of the 18th century. Texan ranchers needed to take their livestock to a place where it could be distributed and sold to the rest of the country.
The best place was Saint Louis, Missouri, because the city became the port of entry to the American West, and connected the West with the East with rail lines.
Texan ranchers therefore hired cowboys to transport the cattle from Texas to Missouri in a long, dangerous journey. The cattle could get stolen in the way, or it could become stray. Thus, the job of the cowboy was a very difficult and important one.
The challenges humans faced is the climate weather and temperature. Which means they had to learn to adapt and have survival skills. Because of these factors, they have the issues of finding a settlement and growing crops and domesticating the animals. Technically, the transition between the Paleolithic and Neolithic is the turning point for the nomads. Where people began to have a settlements, easier growing foods besides hunting and gathering, have their own domestic animals to help them do the fields and etc. Which domesticating an animal led to selective breeding.
