THE EARTH
PHYSICAL GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The temperature of the sun is maintained by
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Coal burning
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Volcanoes
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Thermonuclear heat
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Gravitational attraction
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Explanation:
Detailed explanation-1: -Fusion reaction takes place at temperatures around 107k. It requires this high temperature so that nucleus start moving at rapidly speed, which in turn increases their kinetic, so that they overcome the repulsion between them and can come together.
Detailed explanation-2: –The proton-proton fusion reaction which occurs in the core of the sun at a temperature of about 15, 000, 000 K. In this reaction 0.7% of the total mass disappears and is released as energy.
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