European exploration, exploration of regions of Earth for scientific, commercial, religious, military, and other purposes by Europeans, beginning about the 4th century BCE.
Shortly before the Civil War, Rockefeller and a partner established a shipping company in Cleveland, Ohio. The company made so much money during the war. In 1863, he and his partner invested in another business that refined crude oil from Pennsylvania into kerosene for illuminating lamps.
Answer:
Option B
Explanation:
South America is a continent in the Western Hemisphere and it Tropical North comprise of Peru,Colombia, Venezuela, Ecuador, Guyana etc
These countries has suffered violent political transitions, especially during the 1960s and 1970s which makes the government mostly unstable.Wealth inequality and highly unequal land distribution has created social and political tension n these countries.
Woodrow attacked the tariffs, the banks, and the trusts.
The correct answer is : One of the results was that the United States developed the hydrogen bomb.
Explanation: The hydrogen bomb, among the military is called thermonuclear bomb or fusion bomb. It was created by the physicist Edward Teller and revised and improved by Stanislaw Ulam. They launched a combination between a plutonium fission bomb with a large amount of fusion fuel. It was launched for the first time on an otolón in the Pacific in 1952.
