What do astrophysicists call the poorly understood repulsive force that causes the expansion of the Universe to accelerate?
A) dark energy
B) dark mass
C) the quasar force
D) entropy
Correct Answer:
Verified
Q16: The _ zone is the inner part
Q17: The big bang occurred _ years ago.
A)
Q18: One _ is the distance traveled by
Q19: A small, extremely dense star that emits
Q20: A dying star as massive as our
Q22: The surface of the Sun that we
Q23: All the known elements heavier than iron
Q24: The radiation emitted by stars, galaxies, and
Q25: Population II stars are originally composed of
Q26: Almost two-thirds of the bright galaxies in
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