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Author Question: The nuclear epoch occurred during the formation of: A) only protons and neutrons. B) dark ... (Read 73 times)

jhjkgdfhk

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on: Jul 27, 2018
The nuclear epoch occurred during the formation of:
 
  A) only protons and neutrons.
  B) dark energy.
  C) deuterium and helium.
  D) all elements up to iron.
  E) all known elements.

Question 2

Discuss the fate of meteoroids upon entering the atmosphere of Venus. How do the impact craters found on the surface support this idea? How are the numbers of impact craters affected by volcanism?
 
  What will be an ideal response?


karmakat49

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

C

Answer to Question 2

All small meteoroids burn up in the thick atmosphere. Only large ones reach the surface. Thus, there are no small impact craters, only large ones. Also, the heavy volcanic activity continuously changes the surface, covering up older impact craters, so that there are few impact craters compared to the Moon or Mercury.


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