abbz13
20.03.2022 •
Mathematics
When did stromatolites appear on Earth?
A) Proterozoic
B) Archean
C) Hadean
D) Mesozoic
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Ответ:
Massive formations of stromatolites showed up along shorelines all over the world about 3.5 billion years ago. They were the earliest visible manifestation of life on Earth and dominated the scene for more than two billion years.
Proterozoic:2.5 billion years ago
Archean:4billion years ago
Hadean:4.0 billion years ago
Mesozoic:252.2 million years ago
Step-by-step explanation:
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