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Stars and the Solar System — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceStars and the Solar System1 Mark
MCQ
What is a cosmic year?
  • A
    The time taken by the earth to revolve around the sun.
  • B
    The time taken by the sun to revolve around itself.
  • C
    The time taken by the earth to revolve around itself.
  • ✓
    The time taken by the sun to revolve around the centre of the galaxy, the Milky Way.
✓

Answer

Correct option: D.
The time taken by the sun to revolve around the centre of the galaxy, the Milky Way.
A cosmic year is the time taken by the sun to revolve around the Milky Way galaxy.

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