Answer:
B) Some came unsought.
C) Through a form of ordeal.
Explanation:
During the 19th century, the United States ability to remain isolated from European affairs was largely due to its "geographic location," since it is bordered by the two largest oceans in the world.
It benefits companies by letting geologists find out where oil would likely be by studying surface rock formations, magnetic fields and even slight variations in gravity. One of the most important innovations in oil exploration was 3-D seismic imaging. The companies end up making tones of money off the research that they find
It was the "oil crisis" that was one major cause of the recession in the United States in the 1970s, since many countries in the Middle East cut prices to manipulate prices. This put a focus on alternative energy sources that continues today.
