Write the difference between nuclear fission and nuclear fusion. Which process takes place in the sun?

 

Nuclear fission: A heavy nucleus (e.g., uranium-235) splits into two lighter nuclei, releasing a large amount of energy. It is used in nuclear power plants.

Nuclear fusion: Two light nuclei (e.g., hydrogen isotopes) combine to form a heavier nucleus, releasing enormous energy. It occurs at extremely high temperature and pressure.

The sun produces energy through nuclear fusion, where hydrogen nuclei fuse to form helium, releasing energy in the form of light and heat. This process powers life on Earth and explains why the sun has been shining for billions of years.