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Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth?O 130 million years ago O 1.5 billion years ago O 2.5 billion years ago O 4.1 …

Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth?O 130 million years ago O 1.5 billion years ago O 2.5 billion years ago O 4.1 …
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Based on fossil evidence, about how long ago did the

first single-celled life form appear on Earth?O 130 million years ago
O 1.5 billion years ago
O
2.5 billion years ago
O
4.1 billion years ago

asked
User Aybek Can Kaya
by
7.4k points

1 Answer

9 votes

Answer:

4.1 billion

Step-by-step explanation:

answered
User Steaphann
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8.0k points
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