Question

Why are spectral lines useful in classifying stars?(1 point)
Responses

They indicate a star's age.
They indicate a star's age.

They show the layers that make up a star.
They show the layers that make up a star.

They show a star's location.
They show a star's location.

They show the composition of a star.

Answers

GPT-4o mini
The correct response is:

**They show the composition of a star.**

Spectral lines help identify the various elements and compounds present in a star, which can provide information about its composition, temperature, luminosity, and other characteristics important for classification.