The radiation emitted by stars, galaxies, and quasars is known as ____.
A) first generation energy
B) second generation energy
C) the big bang
D) cosmic background radiation
Correct Answer:
Verified
Q19: A small, extremely dense star that emits
Q20: A dying star as massive as our
Q21: What do astrophysicists call the poorly understood
Q22: The surface of the Sun that we
Q23: All the known elements heavier than iron
Q25: Population II stars are originally composed of
Q26: Almost two-thirds of the bright galaxies in
Q27: Neutron stars are _.
A) dense stars where
Q28: In the _ model, the gravitational force
Q29: Astronomers believe that a _ must lie
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