Based on the information given, the validity and reliability of an information will be determined based on the relevance and accuracy of the information.
<h3>
Credible sources.</h3>
It should be noted that when writing, it's important to use credible sources and facts.
The validity and reliability of an information will be determined based on the relevance and accuracy of the information. It should be factual and relevant.
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The use of the word "pallo-photophone" is meant to help readers understand the science behind sound films, as shown in option B.
<h3>Why is this help needed by readers?</h3>
- Because readers live in a modern age.
- Because modernity makes readers forget how technology has evolved.
- Because readers need to know where the technology came from.
The pallo-photophone was an essential creation so that we could have films with sound, where the actors speak and have greater interaction with the story and the public. Before this was not possible and although silent films were popular, talkies were much more exciting and it was through the pallo-photophone that these films could exist.
The pallo-photophone evolved over time until reaching the audio quality that movies have today. This evolution makes individuals forget how technology is a process that improves over time. For this reason, the author of the text emphasizes the pallo-photophone, to remind readers of what science was like in the past.
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Answer:
C. By placing Sputnik into orbit, the Soviet Union started up the Space Race competition with the United States.
Explanation:
On Friday, October 4, 1957 a momentous event had occurred in the region of the Soviet Union known as Kazakhstan -- the Soviets had launched an artificial satellite into orbit around the earth. Rather than celebrating this momentous scientific feat, Americans reacted by trying to send their own satellite into space. Thus, creating the space race against the USSR.
