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

question 85

Multiple Choice

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.

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Definitions:

Excursion

The movement of a structure or part away from its resting position, often used in the context of muscle movement or joint mobility.

Extension

The movement by which the two ends of any jointed part are drawn away from each other, increasing the angle between them.

Adduction

The movement of a limb or other body part toward the midline of the body or toward another body part.

Flexion

The action of bending or the condition of being bent, especially of a joint or muscle.