Answer:
A researcher would use the primary source of data to know exactly how the event took place. A secondary source is based on the historical event and records the historical events based on the event usage. Primary sources enable the researchers to critically analyse and study the historical event.
Explanation:
Answer:Required design changes after the Three Mile Island accident resulted in higher costs and longer construction times for new nuclear plants. As a result, construction of nuclear reactors steeply declined. No nuclear plants started after 1974 have been completed in the United States.
Explanation:please give brainliest
The Reconstruction Amendments were the 13th, 14th, and 15th amendments. they were to make america a county that isn't half free and half slave, but a country that is guaranteed blessings or liberty.
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Answer:
Many historians consider the printing press as the most important invention in history because from its creation it allowed the development and expansion of knowledge through the printing of books. Until that moment, knowledge, science and other theories that generated technological, economic, political and social development could not be broadly transmitted, because the books were written by hand by the monks, who exercised a kind of censorship over any question that was against religious principles.
For this reason, the printing press removed the monopoly on knowledge from religion, while increasing the ease of transmitting said knowledge, exponentially increasing the speed of human development.
