What Evidence Exists That the Sun Contains the Element Iron

question 195

Multiple Choice

What evidence exists 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 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.

---

Definitions:

Full Cost

The complete cost of producing and delivering a product or service, including direct and indirect costs.

Profit Margin

A financial metric indicating the percentage of revenue that remains as profit after accounting for costs and expenses.

Profit Margin

A financial metric that measures the amount of net income generated as a percentage of revenue.

Full Cost

The total cost associated with producing a product or providing a service, including both direct and indirect costs.