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Author Question: Evidence gathered from observations of exoplanets indicates approximately what percentage of stars ... (Read 28 times)

B

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

D

Answer to Question 2

A


B

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

mohan

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Reply 3 on: Yesterday
Wow, this really help

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