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Author Question: Why can't current theories describe what happened during the Planck era? A) We do not know how ... (Read 61 times)

lindiwe

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on: Jul 27, 2018
Why can't current theories describe what happened during the Planck era?
 
  A) We do not know how hot or dense the universe was during that time.
  B) We do not understand the properties of antimatter.
  C) We do not yet have a theory that links quantum mechanics and general relativity.
  D) The Planck era was the time before the Big Bang, and we cannot describe what happened before that instant.

Question 2

Which Galilean moon of Jupiter is volcanically active?
 
  A) Io
  B) Europa
  C) Ganymede
  D) Callisto


kalskdjl1212

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

C

Answer to Question 2

A


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lindiwe

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Reply #2 on: Jul 27, 2018
Thanks


kalskdjl1212

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Reply #3 on: Jul 27, 2018
Welcome :)


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