Final answer:
The photosphere of the Sun generates the light seen on Earth.
Step-by-step explanation:
The part of the Sun that generates the light seen on Earth is the photosphere.
The photosphere is the outermost layer of the Sun's interior and it is the region where most of the Sun's energy is emitted as light. It is made up of hot, dense gases that create a continuous spectrum of light. This is why we see the Sun as a bright yellow disc in the sky.
The other regions mentioned, such as the radiation zone, chromosphere, and corona, play important roles in the Sun's structure and behavior, but they do not emit the visible light that we see on Earth.
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