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How is most of the oxygen on Earth produced?
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How is most of the oxygen on Earth produced?

User JMP
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In the process of photosynthesis, phytoplankton release oxygen into the water. Half of the world's oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants.
User Alfreddd
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Howdy, there!

The answer is "Plankton and Plants"

Hope this helps!

User Kourosh Raoufi
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