Multiple choice

The earth originated about _________ ago.

  1. 1.6 billion yrs

  2. 4.6 billion yrs

  3. 8.6 billion yrs

  4. 86 billion yrs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Earth formed approximately 4.6 billion years ago from the solar nebula. This age is based on radiometric dating of meteorites and Earth's oldest rocks, representing the scientifically accepted age of our planet.

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