The statements 'the accretion of cosmic dust formed the seeds of planets' and 'the denser rocky material in the solar nebula stayed closer to the sun' help explain how Earth formed. It is part of the solar system.
The solar system
The solar system consists of the Sun and eight planets (i.e., Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune).
The solar system is also composed of Pluto (a dwarf planet) many different moons, asteroids, etc.
The solar system formed approximately 4.6 billion years ago from interstellar gas and dust.
Learn more about the solar system here:
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