Answer :
The main reason the inner planets and outer planets have so different compositions is their initial position in the young solar nebula.
The inner planets are the planets closest to the sun, namely Mercury, Venus, Earth, and Mars. Meanwhile, the outer planets are the planets farthest from the sun, namely Jupiter, Saturn, Uranus, and Neptune.
The inner and outer planets are separated by the asteroid belt. There are thousands of asteroids orbiting the sun between Mars and Jupiter.
The outer planets are much larger than the inner planets. Because of their large mass and cooler temperatures, they have very different compositions; They are mostly made of light elements with an extended atmosphere in gaseous form. The outer planets exist in much larger systems than the inner planets.
Learn more about the difference between the inner planets and outer planets at https://brainly.com/question/18917292
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