Answer :

Final answer:

The Sun generates energy through nuclear fusion reactions, primarily converting hydrogen to helium, which sustains its brightness over billions of years.


Explanation:

The Sun's Energy Production:

The Sun produces energy through nuclear fusion reactions in its core, primarily the proton-proton chain converting hydrogen to helium. This process releases vast amounts of energy, which is transmitted through convection and radiation, sustaining the Sun's brightness.

Key Points:

  • Fusion Reactions: Proton-proton chain converts hydrogen to helium.
  • Energy Transmission: Convection and radiation carry energy outward.
  • Duration: Sun has been producing energy for billions of years.

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