Question 2 1 pts The long-term source of energy that powers the Sun is mass energy of hydrogen fusing into helium. gravitational potential energy of the contraction of the gas cloud that formed the Sun. kinetic energy of the orbital motion of the Sun
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Home » Geography » Question 2 1 pts The long-term source of energy that powers the Sun is mass energy of hydrogen fusing into helium. gravitational potential energy of the contraction of the gas cloud that formed the Sun.