Which process allows green plants to make sugars using light energy?

Photosynthesis is the process by which plants and other photosynthetic organisms use light energy to convert carbon dioxide and water into energy-rich organic compounds, releasing oxygen in oxygenic photosynthesis. Respiration releases usable energy from organic molecules, while evaporation and fermentation refer to different processes. Photosynthesis is central to food webs and the global carbon cycle.