Multiple choice

Oceans are believed to have formed in which of the following eons?

  1. Archean

  2. Proterozoic

  3. Hadean

  4. Phanerozoic

  5. Mesoarch

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

The hadean is the first geologic eon of earth, lies before the archean eon and oceans are believed to have formed during this eon.