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    Question

    Approximately how old is the Sun? 

    A 4.6 billion years Correct Answer Incorrect Answer
    B 3.8 million years Correct Answer Incorrect Answer
    C 2 billion years Correct Answer Incorrect Answer
    D 650 million years Correct Answer Incorrect Answer

    Solution

    The Sun is estimated to be about 4.6 billion years old, formed from the gravitational collapse of a giant molecular cloud.

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