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Author Question: The separation between Africa and Arabia is a(n) ____________________ valley. Fill in the ... (Read 40 times)

daltonest1984

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on: Jul 27, 2018
The separation between Africa and Arabia is a(n) ___________________ _ valley.
 
  Fill in the blank(s) with correct word

Question 2

What distance methods is used to calibrate the Hubble constant?
 
  a. Parallax
  b. Supernova observations
  c. variable stars
  d. both a and b
  e. both b and c


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Joy Chen

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

rift

Answer to Question 2

E


daltonest1984

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Reply 2 on: Jul 27, 2018
Excellent

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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