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Naily [24]
3 years ago
5

Describe the significance of stromatolites to Earth’s early atmosphere.

History
1 answer:
Otrada [13]3 years ago
7 0
Cyanobacteria use water, carbon dioxide, and sunlight to create their food, and expel oxygen as a by-product. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. ... They were the first known organisms to photosynthesis and produce free oxygen.
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