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Klio2033 [76]
3 years ago
10

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 ​

Social Studies
1 answer:
VladimirAG [237]3 years ago
6 0

Answer:

c

2.5million

Explanation:

I think because it says complex single life

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