what is the primary source of energy for photosynthesis?\nsunlight\nheat\noxygen

Answer:

sunlight

Brief Explanations:

Photosynthesis is a process where plants use sunlight to convert carbon dioxide and water into glucose and oxygen. Sunlight provides the energy needed for this chemical reaction. Heat is a by - product in many processes but not the primary energy source for photosynthesis. Oxygen is a product of photosynthesis, not the energy source.