Quasars are currently believed to be
A) The brightest elliptical galaxies
B) The most luminous supernova remnants
C) An early phase of intense activity in the centers of galaxies
D) Structures larger than clusters of galaxies
Correct Answer:
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Q2: How do we know that quasars are
Q3: Since quasars are thought to be at
Q4: About how large is a 1 million
Q5: Some quasars vary in brightness in only
Q6: Why do Seyfert Galaxies strengthen the case
Q8: Quasars were originally discovered as
A)Strong radio sources
Q9: Which of the following is true of
Q10: Quasars all have great distances.Why are there
Q11: How do we know that the quasars
Q12: For a typical luminous radio galaxy,most of
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