This article gives an overview of the process called photosynthesis.
Photosynthesis is the transformation of light energy into chemical energy for use in living cells. The overall process can be described as:
[math]CO_2 + 2 H_2O \rightarrow (CH_2O)n + H_2O + O_2[/math]
With the aid of light and plants, water is split into hydrogen and oxygen. Carbohydrates [math](CH2O)[/math] such as sugars and starches are produced.