What reactants are involved in photosynthesis? A. C2H4O2 and H2O and sunlight energy B. H2O and CO2 and chemical energy C. C2H4O2 and H2O and chemical energy D. H2O and CO2 and sunlight energy
The reactants used in photosynthesis are H2O(water), CO2(carbon dioxide), and light(sunlight) energy. These are used to produce glucose for the plant and oxygen which is released.