Answer:
B. the Tigris River and the Euphrates River
Explanation:
the region's semiarid climate didn't have much rainfall, with less than ten inches annually. This initially made farming difficult. the Tigris and Euphrates provided a source of water that enabled wide-scale farming.
In the first major pioneering movement, settlers made their way to Oregon and California by way of the "Oregon Trail", which was also where many settlers would meet with relatives.
Technology caused the Industrial revolution because the main point of the IR was the fact that the US became more modernized and were able to produce more for less. In the industrial revolution, both were achieved with the use of mass-production, which made most of the mass-produced products more affordable for more people, and so the sellers sold more.
the Industrial revolution affects our society today, because without the sudden invention of many things (cars, typewriters, railroads) we wouldn't be a world power as we are today. Also, without the IR, we may have lost more wars throughout the years then we actually did
hope this helps