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Author Question: The most abundant molecule in molecular clouds is A) H2. B) He2. C) CO. D) H2O. E) ... (Read 43 times)

ss2343

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on: Jul 27, 2018
The most abundant molecule in molecular clouds is
 
  A) H2.
  B) He2.
  C) CO.
  D) H2O.
  E) HHe.

Question 2

Detailed study of stellar spectra in 1897, which enabled the development of the H-R diagram, was performed by:
 
  A) E.C. Pickering.
  B) Harlow Shapley.
  C) James Lick.
  D) John Herschel.
  E) Antonia Maury.


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HandsomeMarc

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

A

Answer to Question 2

E


ss2343

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Reply 2 on: Jul 27, 2018
:D TYSM

lcapri7

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Reply 3 on: Yesterday
Excellent

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