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What event in earths history was dependent on the development of a certain type of life form?
Wiki User
∙ 10y ago
addition of free oxygen
Wiki User
∙ 10y ago
The oxygenation of Earth's atmosphere was dependent on the development of photosynthetic life forms, like cyanobacteria. These organisms were able to convert sunlight into energy and release oxygen as a byproduct, which ultimately led to the increase in oxygen levels on Earth.
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What are two ways that scientists can study earths climatic history?
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