Multiple choice

The age of earth is estimated to be

  1. 4.5 billion years

  2. 4.5 million years

  3. 4.5 years

  4. None of these
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A Correct answer
Explanation

The age of earth is estimated to be 4.5 billion years. This age is based on evidence from radiometric age dating of meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples. 

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