Question #847b5

1 Answer
Joseph
Jan 21, 2018

Approximately 3.5 Billion years old.

Source: (http://www.pbs.org/wgbh/evolution/library/faq/cat06)

Explanation:

The oldest known fossils are approximately 3.5 Billion years old, but some Scientists have discovered Chemical Evidence suggesting that Life may have begun even earlier, nearly 4 Billion years ago.

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