What is the main source of the carbon dioxide that is used during photosynthesis?
volcanic eruptions
soil microorganisms
the atmosphere
the sun
Question & Answer
What is the main source of the carbon dioxide that is used during photosynthesis?
1 Answer
Verified archiveThe main source of the carbon dioxide used during photosynthesis is the atmosphere.
Plants absorb carbon dioxide (CO2) from the air through small openings in their leaves called stomata. This carbon dioxide is then used in the process of photosynthesis to produce glucose and oxygen, which are essential for plant growth and energy.