According to our present theory of solar system formation, which of the following lists the major ingredients of the solar nebula in order from the most abundant to the least abundant?
A) Hydrogen and helium gas; hydrogen compounds; rock; metal
B) Hydrogen compounds; hydrogen and helium gas; metal; rock
C) Hydrogen and helium gas; rock; metal; hydrogen compounds
D) Hydrogen, water, methane, helium

Question

Quizplus · Accepted Answer

Hydrogen and helium gas are the most abundant elements in the universe, and they were the main components of the solar nebula. Hydrogen compounds, such as water and methane, were also present, but in smaller amounts. Rock and metal were the least abundant ingredients of the solar nebula.

According to Our Present Theory of Solar System Formation, Which