The Sun
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Questions and Answers

What type of star is the Sun?

  • Blue supergiant
  • Red giant
  • White dwarf
  • Yellow dwarf (correct)
  • Where does the Sun's energy come from?

  • Gravitational collapse
  • Solar wind
  • Nuclear fusion reactions (correct)
  • Geothermal activity
  • When did the Sun form?

  • 2.5 billion years ago
  • 6 billion years ago
  • 4.6 billion years ago (correct)
  • 1 billion years ago
  • Which element makes up the majority of the Sun's mass?

    <p>Hydrogen</p> Signup and view all the answers

    What is the Sun's radius compared to Earth's radius?

    <p>109 times larger</p> Signup and view all the answers

    What is the Sun primarily composed of?

    <p>Plasma</p> Signup and view all the answers

    What is the Sun's mass compared to Earth's mass?

    <p>330,000 times larger</p> Signup and view all the answers

    What type of fusion reactions occur at the Sun's core?

    <p>Nuclear fusion reactions</p> Signup and view all the answers

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