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09-10-2020
Social Studies

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Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth? O130 million years ago O1.5 billion years ago O2.5 billion years ago

Based on fossil evidence about how long ago did the first singlecelled life form appear on Earth O130 million years ago O15 billion years ago O25 billion years class=

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26nadiakozamel 26nadiakozamel

22-10-2020

Answer:

c

2.5million

Explanation:

I think because it says complex single life

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bestiebuilds bestiebuilds

10-11-2020

The correct answer is 2.5 billion years ago.

I know I'm very late but I hope this helps someone!

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