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It is estimated that 50 to 70 percent of all the oxygen in our atmosphere comes from algae and bacteria found in our oceans. Trees and plants only account for about 20% of the total oxygen produced.
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It is estimated that 50 to 70 percent of all the oxygen in our atmosphere comes from algae and bacteria found in our oceans. Trees and plants only account for about 20% of the total oxygen produced.
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