Multiple choice general knowledge science & technology

solar system is_____ billionyrs old

  1. 4.6

  2. 5.2

  3. 3.9

  4. 4.4

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Solar System formed approximately 4.6 billion years ago from the gravitational collapse of a giant molecular cloud. This age is determined by radiometric dating of the oldest meteorites, calcium-aluminum-rich inclusions (CAIs), and lunar samples. This is also consistent with the estimated age of the Sun.