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Liono4ka [1.6K]
4 years ago
13

What caused scientists such as Robert Goddard, Konstantin Tsiolkovsky, and Hermann Oberth to experiment with rocket technology i

n the early twentieth century?
A)to launch of artificial satellites

B)to explore "the last frontier"

C)to help their countries win the space race

D)to help their government spy on enemies

E)to gain victory in wars
History
2 answers:
olga55 [171]4 years ago
8 0
The best and most correct answer among the choices provided by the question is the second choice. The cause of studying rocket technology was that to explore the "last frontier". I hope my answer has come to your help. God bless and have a nice day ahead!
exis [7]4 years ago
7 0

to explore "the last frontier"

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Europeans did bring new technologies and animals such as horses, cattle, sheep, and goats. However, those improvements came at a high price. The conquistadors (Spanish invaders) destroyed religious temples, and they killed those who refused to convert. Guns traded to indigenous peoples also increased the death toll among tribes fighting amongst one another, especially in North America.
More than guns, the most devastating result of the Columbian Exchange was the spread of disease. In the years following European invasion, it is estimated that up to 95 percent of the Americas’ total population died. That’s approximately 19 million people. The native population was almost wiped out. The main cause of death was disease, such as smallpox. These diseases did not exist in the New World prior to the European’s arrival. Because the native peoples had no natural immunity, they became sick. Europeans were less affected by disease outbreaks because they had been exposed to the germs before when they worked with domesticated animals. There was also little understanding of disease and how to contain outbreaks. As a result, these diseases spread rapidly. Also, since there was very little understanding of disease, the Europeans thought the native peoples were weak and sickly. Huge numbers of the native populations were wiped out from diseases, which led to a big shortage of labor. In addition, native people knew the land and could often escape if they were forced to work. Europeans quickly realized that they could not build a workforce out of the native peoples. The Europeans needed manual labor for the agricultural enterprises they set up, so they turned to the African slave trade. Beginning in the 1500s, thousands upon thousands of enslaved Africans were shipped to the continent.
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I hope this helps! My father was a world history teacher, so I may have provided a little excess information, depending on what you have and have not covered in your studies of the Columbian Exchange. :)
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