What are the relative compositions of the materials from which stars form?
A)about 74% hydrogen,about 24% helium,no more than 2% other materials
B)about 24% hydrogen,about 74% helium,no more than 2% other materials
C)about 2% hydrogen,about 74% helium,no more than 24% other materials
D)Stars have vastly differing combinations of materials.

Question

Quizplus · Accepted Answer

According to current models of star formation, the relative composition of the materials from which stars form is about 74% hydrogen, about 24% helium, and no more than 2% other materials. This is because hydrogen is the most abundant element in the universe, and helium is the next most abundant. Other elements make up only a very small fraction of the interstellar medium from which stars form.

What Are the Relative Compositions of the Materials from Which