The Precambrian basement rocks of Ohio became part of the North American continent
A) more than 2.5 billion years ago.
B) 1.9 billion years ago.
C) 1.8 to 1.9 billion years ago.
D) 1.7 to 1.8 billion years ago.
E) about 1.1 billion years ago.

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The Answer of The Precambrian basement rocks of Ohio became part of the North American continent
A) more than 2.5 billion years ago.
B) 1.9 billion years ago.
C) 1.8 to 1.9 billion years ago.
D) 1.7 to 1.8 billion years ago.
E) about 1.1 billion years ago.

The Precambrian Basement Rocks of Ohio Became Part of the North