A supergiant will eventually explode as a type II supernova. What provides the energy for this explosion?
A. Radioactive decays of unstable heavy elements.
B. Fusion of light elements into heavy elements.
C. Sudden gravitational contraction.
D. Dark energy.
Answer:C
A supergiant will eventually explode as a type II supernova. What provides the energy for this explosion?
A. Radioactive decays of unstable heavy elements. B. Fusion of light elements into heavy elements. C. Sudden gravitational contraction. D. Dark energy.