The Secrets of Stars
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Questions and Answers

What is the primary source of heat and light in stars?

  • Reflection of sunlight
  • Electric discharge
  • Nuclear fusion reactions (correct)
  • Gravitational pull

    • What is the main constituent of stars?

  • Oxygen
  • Carbon dioxide
  • Hydrogen gas (correct)
  • Nitrogen gas

    • Why do stars appear to be small?

  • They are actually small in size
  • They have a compact structure
  • They emit very little light
  • They are very far away from us (correct)

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