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Author Question: Which of the following planets has the least substantial atmosphere? A) Mercury B) Mars C) Earth ... (Read 70 times)

ap345

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on: Jul 27, 2018
Which of the following planets has the least substantial atmosphere?
 
  A) Mercury B) Mars C) Earth D) Neptune E) Venus

Question 2

What do we mean by inflation?
 
  A) the rapid expansion of the universe, driven by white dwarf supernova, that we still observe today
  B) the expansion of universe starting with the instant after the Big Bang
  C) the sudden release of photons when particles and antiparticles annihilate each other
  D) a sudden expansion of the universe driven by the energy released when the strong and electroweak forces froze out from the GUT force
  E) the photons released when electrons and protons first combined, forming the Cosmic Microwave Background Radiation


britb2u

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

A

Answer to Question 2

D


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