About how long ago was the earth formed

  • A

    $4.5$ billion years ago

  • B

    $10$ billion years ago

  • C

    $3.0$ billion years ago

  • D

    $20$ billion years ago

Similar Questions

What was not used by Millar in his experiment ?

The first non-cellular form of life could have originated about $. . . . .$ years ago.

Origin of life took place in/on

Describe various theories of origin of life.
 

Which of the following breakup water into hydrogen and oxygen on early earth?