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Physics, 16.07.2019 14:00 Gloryreak3728

About three billion years ago, single-celled organisms called cyanobacteria lived in earth’s oceans. they thrived on the ocean’s abundance of , which they used during the process of photosynthesis. much later, this process allowed organisms, such as fish, to survive by extracting dissolved from ocean waters. a. oxygen b. carbon dioxide c. nitrogen

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