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Author Question: Evidence gathered from observations of exoplanets indicates approximately what percentage of stars ... (Read 42 times)

B

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Evidence gathered from observations of exoplanets indicates approximately what percentage of stars have planets?
 
  A) 0
  B) 1
  C) 10
  D) 100
  E) It is not yet possible to make an estimate.

Question 2

Quasar's spectral lines are:
 
  A) emission lines with large redshifts.
  B) a continuum from the synchrotron radiation.
  C) fuzzy absorption lines from the merged light of the billions of stars.
  D) too complex for any interpretation.
  E) nonexistent, the gas so hot as to be totally ionized, so no lines are seen.



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Dnite

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Answer to Question 1

D

Answer to Question 2

A




B

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


ryhom

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Reply 3 on: Yesterday
Gracias!

 

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