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djverab [1.8K]
3 years ago
15

When did stromatolites appear on Earth? A. Hadean B. Mesozoic C. Archean

Physics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

It would be D. Proterozoic because they appeared 542 million years ago.

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Answer

given,

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