Question

during the process of making food ,most oxygen is realesd in the atmosphere
autotrophic ,heterotrophic ,saprotrophic
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Answer 1

Answer: This may help you

Explanation:

During photosynthesis, carbon dioxide and water are converted into carbohydrates and molecular oxygen. The carbohydrates become the fuel the plant uses to run its body and the oxygen is released into the atmosphere. In other words, photosynthesis is how plants are able to make their own food.