LIFE SCIENCE

Detailed explanation-1: -Sunlight is necessary for photosynthesis, the sun provides the initial energy that starts the cycle of photosynthesis The energy from the light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.

Detailed explanation-2: -Photosynthesis takes place in two stages: the light-dependent reactions and the Calvin cycle. In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water.