Which form of energy is responsible for the primary energy output of the sun and other stars? (Points : 1)
chemical energy
nuclear energy
mechanical energy
electromagnetic energy
Nuclear, because if you think of how you get sunburnt when in sun too long, the sun emits UV Rays (Ultraviolet Rays) which can be nuclear if too strong. I hope this helps!
The energy that stars radiate originates as nuclear energy. The core of a star is a place where the pressure and temperature are so enormous that hydrogen nuclei are fused into helium nuclei ... the same process that causes the explosion of a "hydrogen" bomb.