The term photosynthesis is composed of two words, Photo which mean Light and synthesis mean to made some things.
So photosynthesis is the process by which green plants make their own food by the help of light. Light is essential for photosynthesis without light photosynthesis is impossible. Both natural and artificial light is effective in photosynthesis.
The raw materials of photosynthesis is Water and carbon dioxide , by the help of chlorophyll and light Water and carbon dioxide reacts to form glucose molecule. Chlorophyll is a pigment in green plants.