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Author Question: A__________is a type of active galaxy nucleus that is especially variable and has few or no spectral ... (Read 31 times)

nenivikky

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on: Jul 27, 2018
A__________is a type of active galaxy nucleus that is especially variable and has few or no spectral emission lines.
 
  A) blazar
  B) pulsar
  C) quasar
  D) quark

Question 2

In the context of measuring the properties of galaxies, a__________is an object of known brightness that astronomers use to find distance.
 
  A) black hole
  B) white dwarf
  C) standard candle
  D) red giant


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kardosa007

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

C


nenivikky

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Reply 2 on: Jul 27, 2018
Excellent

tanna.moeller

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Reply 3 on: Yesterday
Wow, this really help

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