Studies of the spectra of stars have revealed that the element that makes up the majority of the stars (75% by mass) is
A) stellarium
B) hydrogen
C) helium
D) carbon
E) Einsteinium

Question

Quizplus · Accepted Answer

Studies of the spectra of stars have revealed that the majority of the mass in stars is made up of hydrogen. In fact, nearly all of the observable universe is made up of hydrogen.

Studies of the Spectra of Stars Have Revealed That the Element