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27 September, 13:22

Which of the following statements is true?

A) cool air is less dense than warm air.

B) Sound does not require a medium for travel.

C) Magnetism is caused by the spinning motion of electrons.

D) Electricity flows from positive to negative areas.

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Answers (1)
  1. 27 September, 13:30
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    The statement that is true is C.
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