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Author Question: Astronomers who discovered quasars found that they show ___________ of their spectral lines and are ... (Read 30 times)

Coya19@aol.com

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on: Jul 27, 2018
Astronomers who discovered quasars found that they show ___________ of their spectral lines and are thus probably much ___________ than nearby galaxies.
 
  a. large redshifts; farther away
  b. large blueshifts; farther away
  c. no wavelength difference; nearer
  d. large redshifts; nearer
  e. large blueshift; nearer

Question 2

What are the two longest stages in the life of a one-solar-mass star?
 
  a. Protostar, pre-main-sequence
  b. Protostar, white dwarf
  c. Protostar, main-sequence
  d. Main-sequence, white dwarf


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ansleighelindsey

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

a

Answer to Question 2

d


Coya19@aol.com

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

tandmlomax84

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Reply 3 on: Yesterday
Excellent

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