What Evidence Do We Have That the Sun Contains the Element

question 378

Multiple Choice

What evidence do we have that the Sun contains the element iron?

• A) Solar spectra show absorption in spectral lines that are characteristic of iron and are unique to it.
• B) The peak wavelength of the continuum spectrum of sunlight is characteristic of the emission spectrum of iron, as seen when a piece of iron is heated in the laboratory.
• C) Scientists have collected meteorites composed of almost pure iron that have originated in the Sun.
• D) Magnetic fields exist in sunspots and on the Sun, and they must be produced by iron in the same way that Earth's magnetic field is generated.

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