You Measure the Spectrum of a Star and Are Unable

question 104

Multiple Choice

You measure the spectrum of a star and are unable to see absorption lines associated with iron. What can you conclude?

• A) There is no iron in the star's atmosphere.
• B) There is no iron in the star's core.
• C) There may be iron in the star's atmosphere, depending on the temperature.
• D) There may be iron in the star's atmosphere, depending on the age of the star.

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