How is CO2 split into carbon and oxygen?

Carbon dioxide (CO2) is split into carbon and oxygen through a process called photosynthesis. During photosynthesis, plants use sunlight to convert CO2 and water into glucose (sugar) and oxygen. This process occurs in the chloroplasts of plant cells, where the energy from sunlight is used to break down the CO2 molecules into carbon and oxygen atoms. The carbon is used by the plant to build organic molecules, while the oxygen is released into the atmosphere as a byproduct.