The source of energy in all stars including the sun is 1 Unknown 2 Fusion of hydrogen nuclei into he...........

Geography Atmosphere

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The source of energy in all stars including the sun is

1. Unknown

2. Fusion of hydrogen nuclei into helium nucleus

3. Fission of bigger nuclei into smaller ones

4. Stored energy in the atmosphere

Select the correct answer using the codes given below

Only one statement is correct

Only two statements are correct

Only three statements are correct

All statements are correct

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Explanation:

Second option is correct.

Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion.Stars are made mostly of hydrogen and helium, which are packed so densely in a star that in the star's center the pressure is great enough to initiate nuclear fusion reactions.