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Most asteroids were already there before the planets themselves took shape. That makes them:
AComet fragments
BCaptured moons
CRecent debris
DEarly remnants
Answer & Solution
Correct answer: D. Early remnants
1. They belong to the initial population.
2. They predate the planets.
3. They are early remnants.
_Source: OpenStax Astronomy 2e, Chapter 7, Other Worlds: an Introduction to the Solar System._
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