-The core is the furthest inside layer where most of the fusion takes place
-The core is made hot and dense by the pressure caused by the weight of the rest of the star
-The nuclei in the core are therefore close enough & have enough energy to fuse together
-The layer second from the inside of a star is the radiative zone
-The energy released from fusion in the core is transported by photons of radiation towards the surface of the star
-The convection zone is the second layer from the outside of a star
-Here energy is transferred to the surface of the star by convection currents
-The photosphere is the surface of the star where energy is radiated into space
-This is seen from Earth and constantly churning mostly because of the rising and falling of material in the convection zone below it
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