Which planetary fact(s) is(are) explained by the solar nebula theory
A)The orbits are all approximately in the same plane
B)The orbits are all in the same direction
C)Jovian planets are mostly H and He
D)Terrestrial planets are mostly rock and iron
E)All of the other choices are correct.

Question

Quizplus · Accepted Answer

The solar nebula theory explains all of the given planetary facts. A and B explain the formation of the flat, disk-like structure of the solar system. C explains why the gas giants are primarily composed of hydrogen and helium, as these elements were abundant in the solar nebula. D explains why the terrestrial planets are mainly comprised of dense, rocky materials that could condense closer to the sun.

Which Planetary Fact(s) Is(are) Explained by the Solar Nebula Theory