Environmental Sciences, asked by snehasishroy964, 1 year ago

Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth?

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Answered by NikhilYadav1120

Earliest life forms. Fossil evidence informs most studies of the origin of life. The age of the Earth is about 4.54 billion years; the earliest undisputed evidence of life on Earth dates from at least 3.5 billion years ago. There is evidence that life began much earlier.

Answered by sri6337

Answer:

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