Read the passage below and answer the question. "What's that song. Teacher Zhu?" Niu Fen, who was a loud-mouth, asked. "A Uigur folk song," Wenli said. "I, I sang it just for fun." I don't know whether Niu Fen reported Wenli to the school leaders. After that, I never heard her sing the song again, and she only sang the revolutionary songs she taught us in class. What motivates Zhu Wenli to sing revolutionary songs instead of Uigur folk songs?

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).

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the statement that identifies the central idea of "the salem and other witch trail hunts" is d. while witch hunts may feel like a rare occurrence, mike kubic proves that such   incidents are not as uncommon as we originally thought.

the author is trying to show that witch hunts come in various forms and are produced by the fear of what isn't understood or it's different.