Exam-style question
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What is the significance of a star's position on the Hertzsprung-Russell diagram?.
- A.It indicates the star's distance from Earth.
- B.It reveals the star's chemical composition.
- C.It helps classify the star's evolutionary stage.
- D.It determines the star's brightness in the night sky.
Model answer
What a good answer should say
- It helps classify the star's evolutionary stage.
Explanation
Why this works
The position of a star on the Hertzsprung-Russell diagram indicates its evolutionary stage, as it reflects the relationship between its luminosity and temperature.
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