I had a abnormal c x-ray it showed a density in the retrocardic area of lungs what does it mean? Dr. John Chiu Dr. Chiu See doctor: You need to discuss this with your doctor since there are many types of densities which signify different things.
Relevance. Rating Newest Oldest. Best Answer: As said before, photosynthesis does not produce water, it uses the sun's energy to combine carbon dioxide and water to produce carbohydrates and gives off oxygen as a by-product.
The role photosynthesis plays in the carbon cycle is that; producers pull carbon dioxide out of the atmosphere or surface water to use in the process of photosynthesis. Photosynthesis then breaks the bond in carbon dioxide and water to produce oxygen and carbohydrates.