Answer:
The correct answer is:
C. Copernicus developed his hypothesis in response to Ptolemy's hypothesis about planetary rotation, a hypothesis he found unsatisfying.
D. Copernicus saw an unsatisfying explanation and formulated a testable way to understand the motion of the planets.
Explanation:
According to the text, Copernicus thought that it was necessary to establish a new hypothesis model that could be tested and much more attached to reality. Copernicus focused on developing his idea of the universe, because he was not completely satisfied with what Ptolemy proposed some years before. For him, the idea that the earth was the center of the universe and that all the planets rotated around it, did not sound very convincing, so he decided to take the challenge of observing the world around in a more detailed way, which lead him to propose his hypothesis about the way in which the universe is distributed.
It is a false statement that there is only one U.S. Federal holiday in a full year.
<h3>What is a
Federal holiday?</h3>
This refers to the public holidays that established by the federal government of a country.
In United states, there are 11 known Federal holiday in a full year, therefore, it It is a false statement that there is only one U.S. Federal holiday in a full year.
Read more about Federal holiday
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B- the fear felt by whites over the growing success of African Americans.
The common of the three would be the language. These three ethnic groups had struggled regarding language. They did not use the language that is being used by the dominant groups. However, they differ in terms on how they cope with the changes. For the Xianjing, violence occurred because the Uighur were forced to assimilate with the Chinese during the Han dynasty. They tried to fight it at first, but they were outnumbered.
Quebec had allowed the French to be their official language to avoid bigger conflict between their colonizers.
While Chechnya had been the most violent one. The Chechens had waged war against the Russians. At first, they were able to win, however they had lose during the second war when the Russians were able to control Chechnya.
