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Author Question: What are the very cold (about 20 K), dense clouds of gas thought to be the most massive objects in ... (Read 13 times)

james9437

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on: Jul 27, 2018
What are the very cold (about 20 K), dense clouds of gas thought to be the most massive objects in the Galaxy called?
 
  A) emission nebulae
  B) absorption clouds
  C) dust clouds
  D) molecular clouds
  E) reflection nebulae

Question 2

When an electron is formed from a gamma ray collision, a positron is also made.
 
  Indicate whether the statement is true or false


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SeanoH09

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

D

Answer to Question 2

TRUE


james9437

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Reply 2 on: Jul 27, 2018
Gracias!

bdobbins

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Reply 3 on: Yesterday
Excellent

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