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Earth and the Solar System: Phenomena: Question 3 How old is our solar system? Select one: 1. About 13.5 million years. 2. About 13.5 billion years. 3. About 4.5 million years. 4. About 4.5 billion years.
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Earth and the Solar System: Phenomena:

Question 3
How old is our solar system?
Select one:

1. About 13.5 million years.

2. About 13.5 billion years.

3. About 4.5 million years.

4. About 4.5 billion years.

User Nino
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