What makes the star give out vast amount of energy - Science - Stars and the Solar System

Question

What makes the star give out vast amount of energy?

Roopesh Singh · Accepted Answer

The nuclear fusion inside the core of star produces vast amount of
energy Nuclear burning (reaction) is much different from burning of
simple hydrocarbons (coal, petrol, etc) where small amount of
energy is produced The Hydrogen gas or Helium is burnt as a nuclear
fuel inside the star to produce energy You will be studying about
Nuclear reaction in your higher grades