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Author Question: Elements above hydrogen and helium come from _____. a. the early stages of the Universe, before ... (Read 216 times)

tuffie

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Elements above hydrogen and helium come from _____.
 
  a. the early stages of the Universe, before the formation of stars and galaxies
  b. the collision of neutron stars and black holes
 c. cooling and accretion of molecules in dense molecular clouds
 d. the last phases of stellar evolution and stellar death
 e. matter falling into supermassive black holes

Question 2

The importance of the general theory of relativity lies in its description of ____.
 
  a. acceleration
  b. gravity
 c. mass
 d. space-time
 e. velocity



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vickyvicksss

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Answer to Question 1

d

Answer to Question 2

b





 

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