Question

The terrestrial planets are different from the giant planets because when they formed

a. The inner solar system was richer in heavy elements
b. The inner solar system was hotter than the outer solar system
c. The outer solar system took up a bigger volume, so there was more material to form planets
d. The inner solar system was moving faster, so centrifugal force was more important

Answer 1

Option B- the inner solar system was hotter than the outer solar system is the correct answer.

The Sun and the planets formed together 4.6 billion years ago from a cloud of dust particles and gas known as the Big bang. The universe continued to decrease in density and temperature. The energy of each particle was going down.

The terrestrial planets formed near the Sun, where temperatures were best for rocks and metals to condense. The jovian planets formed outside is called the frost line, where temperatures were low for ice condensation.

Learn more about the Solar system at
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