By which process oxygen returns to atmosphere
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Answer:
The process by which oxygen returns to atmosphere is Photosynthesis
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Answer:
photosynthesis
Explanation:
bcoz this is the proces by which plants make there food using chlorophyl present whith in them which aids in the trapping of sunlight.
Once the proces is over,as its chemical formula suggest, the plants are useful to us bcoz pure oxygen is once again returnd to the atmosphere
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