Emission spectra can be used to confirm the materials that make up stars to determine the material composition.

a. True
b. False

a. True

Emission spectra can indeed be used to confirm the materials that make up stars and determine their material composition. When a star emits light, it passes through the outer layers of the star, which contain various elements. As the light interacts with these elements, it gets absorbed and re-emitted, creating specific patterns of dark lines or bright lines known as absorption or emission spectra.

These spectra are like fingerprints that identify the elements present in the star. By analyzing the specific wavelengths and intensities of these spectral lines, astronomers can determine which elements are present and in what quantities. This information helps them understand the composition and physical properties of the star.