Question

multiple - choice question
what will analyzing the spectra of the stars in the andromeda galaxy tell us?
what chemicals make up those stars.
how far away the stars are.
how big the stars are.

Explanation:

Spectroscopy can identify the chemical elements present in stars by analyzing the absorption or emission lines in their spectra. Distance and size of stars are not directly determined by analyzing spectra alone.

Answer:

What chemicals make up those stars.