I think it’s D............
Scientific validity is the applicability of a conclusion drawn in the context of a scientific experiment to the world at large.
Photosynthesis is the process through which plants use sunlight and carbon dioxide to make food to sustain themselves. Cellular Respiration is when cells use oxygen and water to create a food source for the cell. The formula for photosynthesis is the same for cellular respiration except it's backwards. Hope this helps.
Answer:
atmospheric pressure
Explanation:
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