Discover: Ocean Literacy Principle 4: The ocean makes Earth habitable.

Did you know that you can thank the ocean for making Earth a hospitable place to live? Most of the oxygen in the atmosphere, that we rely on to breathe, originally came from the activities of photosynthetic organisms in the ocean.

 


 

 

These ocean facts are categorized according to the seven Ocean Literacy Essential Principles and Fundamental Concepts (pdf) for grades K-12, which outline the knowledge required to be considered ocean literate in accordance with the National Science Education Standards.

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