What percentage of the solar nebula's mass consisted of rocky material?
A)0 percent
B)0.4 percent
C)2 percent
D)20 percent
E)80 percent

Question

Quizplus · Accepted Answer

The solar nebula, from which the Solar System formed, consisted of about 98% hydrogen and helium, leaving only about 2% of its mass as heavier elements, including rocky material. Of this 2%, only a fraction, approximately 0.4%, was rocky material.

What Percentage of the Solar Nebula's Mass Consisted of Rocky