How long ago was Earth supposed to have been formed in the solar system of the Milky Way galaxy?

How long ago was Earth supposed to have been formed in the solar system of the Milky Way galaxy?
  1. 2 billion years ago
  2. 3 billion years ago
  3. 4 billion years ago
  4. 4.5 billion years ago

Solution

Earth was supposed to have been formed about 4.5 billion years back in the solar system of the Milky Way galaxy.

Asked in: NCERT

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