Yogyata Negi
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Posted 5 year ago

What are the source of oxygen ?

1 Answer(s)
Mitesh Sharma
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Posted 5 year ago Mitesh Sharma

Oxygen is continuously replenished in the atmosphere by photosynthesis. Around half of the oxygen is produced by phytoplankton and the rest by other green plants. Living organisms including plants utilise oxygen to generate energy by cellular respiration and release carbon dioxide.