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ARC-Easy / Mercury_7235935 / Which observation provides evidence of the existence of planets orbiting other…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Which observation provides evidence of the existence of planets orbiting other stars?

choices

  • periodic dimming of the stars
  • periodic X-ray bursts from the stars
  • rapid location changes of the stars
  • regular spectrum changes from the stars

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Source and history

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