Multiple choice

Approximately how old is the Sun?

  1. 1 billion years

  2. 4.5 billion years

  3. 3 billion years

  4. 2 trillion years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Scientific consensus based on stellar evolution models and radiometric dating of meteorites places the age of the Sun at approximately 4.5 to 4.6 billion years.

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