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Author Question: Most interstellar dust grains are produced in A) the Big Bang. B) the interstellar medium. C) ... (Read 43 times)

c0205847

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Most interstellar dust grains are produced in
 
  A) the Big Bang.
  B) the interstellar medium.
  C) the atmospheres of red giant stars.
  D) supernova explosions.
  E) the solar nebula.

Question 2

Current techniques can measure stellar motion to less than
 
  A) walking speed.
  B) running speed.
  C) freeway speed.
  D) cruising speed of an airplane.
  E) orbital speed of Jupiter.



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ong527

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Answer to Question 1

C

Answer to Question 2

A




c0205847

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Reply 2 on: Jul 27, 2018
Gracias!


ttt030911

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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