How does the sun give off energy?

Answer 1

It gives off energy by producing oxygen which goes into plants, which produces their energy, then makes more oxygen for our energy, we then produce carbon dioxide

Answer 2

The sun gives off energy through a process called nuclear fusion, where hydrogen atoms in its core are converted into helium releasing vast amounts of energy in the form of heat and light. This energy is then radiated outwards in the form of electromagnetic radiation, including sunlight that reaches Earth.