Final answer:
True. The Sun produces energy by fusing protons or hydrogen nuclei into helium nuclei through a process called nuclear fusion.
Step-by-step explanation:
True
The Sun produces energy by fusing protons or hydrogen nuclei into helium nuclei. This process is known as nuclear fusion. The primary sequence of fusion reactions in the Sun is called the proton-proton cycle, which involves the fusion of hydrogen nuclei to form helium nuclei.
During this fusion process, a small amount of mass is converted into energy, releasing a large amount of energy in the form of light and heat. The energy produced by the Sun is essential for supporting life on Earth and is a result of this fusion reaction.