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Oxygen is released into the atmosphere by the process of (a) respiration (b) Photosynthesis (c) Combustion (d) All of these

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Oxygen is released into the atmosphere by the process of (a) respiration (b) Photosynthesis (c) Combustion (d) All of these Select the correct answer from above options Science questions and answers, Science questions pdf, Science question bank, Science questions and answers pdf, mcq on Science pdf,Science book pdf,Science pdf notes,Science lecture notes,Science of light,maxwell Science,Science proposed by,electromagnetic theory engineering physics,Science nptel

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Correct option is: (b) Photosynthesis

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