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Author Question: Which ancient culture had the greatest known success in predicting eclipses? A) Aztecs B) Mayans ... (Read 136 times)

washai

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on: Jul 27, 2018
Which ancient culture had the greatest known success in predicting eclipses?
 
  A) Aztecs
  B) Mayans
  C) Egyptians
  D) Babylonians
  E) Greeks

Question 2

What do we mean by the star-gas-star cycle?
 
  A) It is the idea that stars in close binary systems can exchange gas with one another.
  B) It is the set of nuclear reactions by which heavy elements are produced in the cores of massive stars.
  C) It describes the orbits of the stars and interstellar medium around the center of the galaxy.
  D) It is the continuous recycling of gas in the galactic disk between stars and the interstellar medium.


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otokexnaru

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

B

Answer to Question 2

D


washai

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Reply #2 on: Jul 27, 2018
Thank you!


otokexnaru

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Reply #3 on: Jul 27, 2018
Always glad to help...


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