Answers

2015-08-25T18:35:52+05:30
Sun is a altimate sorce of heat
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2015-08-25T19:45:39+05:30
Sun is a star in the centre of our milky way galaxy and is the most important source of energy on the earth. its temperature of the core is about 15.7 million kelvin with a surface temperature of about 5800 kelvin.
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