What is the main source of the carbon dioxide that is used during photosynthesis?
soil microorganisms
volcanic eruptions
the atmosphere
the sun
What is the main source of the carbon dioxide that is used during photosynthesis?
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The correct answer is the atmosphere.
During photosynthesis, plants absorb carbon dioxide (CO2) from the atmosphere through tiny openings in their leaves called stomata. This carbon dioxide is then used, along with sunlight and water, to produce glucose and oxygen in a process that is essential for plant growth and energy production. If you have more questions about this process or related topics, feel free to ask!