why. sun. is very hot??
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The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).
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Explanation:
When our sun burst into creation, it was a mass of swirling gases that included a core or center that is compressing atoms together in a process called 'nuclear fusion'. This intense pressure creates heat at temperatures that are around 15 million degrees C. ... The sun has an 'atmosphere' that retains the heat.
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