CIE iGCSE Co-Ordinated Science P6.2.1 The Sun as a star Exam Style Questions Paper 2
Question
What is the name of the process by which energy is released in the Sun?
A. background radiation
B. chemical reaction
C. nuclear fission
D. nuclear fusion
▶️Answer/Explanation
Answer: D. nuclear fusion
Explanation: The Sun releases energy through the process of nuclear fusion, where hydrogen nuclei combine to form helium, releasing a tremendous amount of energy in the process.