Question:
The Earth first cooled to form solid rock... 6.5 billion
Last updated: 8/7/2022
The Earth first cooled to form solid rock... 6.5 billion years ago 4.5 billion years ago 3.8 billion years ago 3.5 billion years ago
Last updated: 8/7/2022
The Earth first cooled to form solid rock... 6.5 billion years ago 4.5 billion years ago 3.8 billion years ago 3.5 billion years ago