____________ of Hydroden Atom Nuclei Replace the Heat the Sun

question 17

Multiple Choice

____________ of hydroden atom nuclei replace the heat the sun ____________ to keep it in equilibrium.

• A) Nuclear fusion reactions; loses into space
• B) Nuclear fusion reactions; gains from empty space
• C) Chemical reactions; loses into space
• D) Chemical reactions; gains from empty space
• E) Nuclear fission; loses into space

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