Answers

2015-09-11T18:38:47+05:30

The sun in space is burning due to fusion reactions taking place every millisecond which produces lot of heat energy and very high temperatures. Fusion reaction is a combination reaction of hydrogen atoms to form helium atom with the release of large amount of energy.
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2015-09-12T10:18:13+05:30
Sun is not burning but nuclear fission is going on and 7rays fall like infrared,UV,beta etc due to this waves emitting the temp. Of sun reaches very high
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