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Author Question: Spiral structures and steady star formation depend on ____. a. gentle gravitational interactions ... (Read 59 times)

B

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on: Jul 27, 2018
Spiral structures and steady star formation depend on ____.
 
  a. gentle gravitational interactions with other galaxies
  b. galactic cannibalism
 c. major collisions with other galaxies
 d. hot intergalactic gas flow
 e. supermassive central black holes

Question 2

All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes.
 
  Fill in the blank(s) with correct word


babybsemail

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

a

Answer to Question 2

reflecting


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B

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Reply #2 on: Jul 27, 2018
TY


babybsemail

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Reply #3 on: Jul 27, 2018
You're welcome


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