photochemical reaction

例句：

1. 1. Photochemical reactions are responsible for the formation of life on Earth.
   光化学反应是地球上生命形成的原因。
2. 2. The study of photosynthesis has led to the development of new crops and agricultural techniques.
   对光合作用的研究导致了新作物和农业技术的开发。
3. 3. Photooxidation is a process in which oxygen reacts with organic compounds, often leading to harmful byproducts.
   光氧化是一种过程，其中氧气与有机化合物反应，通常导致有害的副产品。