____________ of hydrogen atom nuclei in the core 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

Question

Quizplus · Accepted Answer

Nuclear fusion reactions in the core of the Sun generate the energy required to replace the heat it loses into space, maintaining its equilibrium.

____________ of Hydrogen Atom Nuclei in the Core Replace the Heat