The source of energy that keeps the Sun shining today is
A)nuclear fission.
B)gravitational contraction.
C)chemical reactions.
D)nuclear fusion.

Question

Quizplus · Accepted Answer

The Sun's energy source is nuclear fusion, which is the process of combining two atomic nuclei to form a heavier nucleus, releasing energy in the process. Specifically, the Sun fuses hydrogen atoms into helium atoms at its core, releasing a tremendous amount of energy in the form of light and heat.

The Source of Energy That Keeps the Sun Shining Today