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Author Question: Simple observations of the darkness of the night sky and the redshifts of the galaxies tell you ... (Read 40 times)

jho37

  • Hero Member
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  • Posts: 531
on: Jul 27, 2018
Simple observations of the darkness of the night sky and the redshifts of the galaxies tell you that:
 
  A) the Universe is contracting.
  B) the Universe must have an edge.
  C) the Universe is perfect and unchanging.
  D) the Universe must have had a beginning.

Question 2

The _____ is the average density of the Universe needed to make its curvature flat.
 
  A) relative density
  B) arithmetic density
  C) nuclear density
  D) critical density


shewald78

  • Sr. Member
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  • Posts: 340
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


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