they conducted thorough scientific experiments
Answer:
The afternoon of October 26, 1881, gunfire erupted in the frontier town of Tombstone. The fighting was over in less than a minute, and when the gun smoke cleared, three men lay dead. This short skirmish might have been a footnote in American history, but it grew and became a legend, perhaps the most famous in the Old West.
A feud had been building between two rival factions in Tombstone. One was led by Kansas lawman Wyatt Earp, his brothers Virgil and Morgan, and their friend John “Doc” Holliday. The other was a loose band of outlaws called the “cowboys”: Among their members were brothers Ike and Billy Clanton and brothers Tom and Frank McLaury. The rising tensions between the two groups revealed that the line between law enforcement and vendetta was very thin in the Arizona Territory.
Tombstone was founded a few years earlier by Ed Schieffelin, a former scout with the United States Army. Schieffelin headed to the Arizona Territory in the 1870s to strike it rich in mining.
Railroads helped the US grow by making settlement in the West possible after the Civil War by connecting farmers (miners, ranchers, loggers, and others) to markets. there people and companies could both ship their produce to markets as well as ship in the machinery and supplies they needed. It was the only way to move large amounts of things quickly.
Answer:
Geothermal
Explanation: because it comes from the earth
