The by-product in plant photosynthesis is? By: Sunday|Published on: Jun 8|Categories: Agricultural Science WAEC| 0 comments A. carbondioxide B. carbohydrate C. hydrogen D. oxygen Correct Answer: Option D – oxygen Users Also Read These:The product cost that does not form part of the…The fleshy sweet product of a plant is called?The by-product of photosynthesis is?A policy where a manufacturer of a product…A small stem from a hibiscus plant was placed in a…SEE ALSO The most important reason for encouraging afforestation in the arid regions of West Africa is to?