Answer:
Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. So, scientists study the path and speed of these waves through the earth to decipher boundaries and the materials that make up the layers.
Explanation:
You have to pay more attention at class to understand the question dummmie..!!
The jazz singer film released in 1927 was the first successful talking motion picture. The correct option is C. The Jazz Singer was the first feature-length film with synchronized dialogue when it was released in 1927.
<h3>When did movies sound to 1927?</h3>
The Warner Bros. film "The Jazz Singer," starring Al Jolson, was the first commercial feature film to use actual synchronized dialogue. "The Jazz Singer" was released on October 6, 1927, and it included both silent and sound sequences.
The Jazz Singer, which debuted on October 6, 1927, was the first feature film to be presented as a talkie. It was a big hit, and it was made with Vitaphone, the leading brand of sound-on-disc technology at the time.
Thus, the ideal selection is option C.
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The fear of being alone: Autophobia.
