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Author Question: The large Jovian satellites have sizes comparable to Mercury. Why do they have an icy composition ... (Read 92 times)

penza

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on: Jul 27, 2018
The large Jovian satellites have sizes comparable to Mercury. Why do they have an icy composition compared to Mercury's rocky composition?
 
  A) They formed beyond the frost line, where ices were three to four times more abundant than metals and rock.
  B) They are captured comets.
  C) They experienced many more cometary impacts during the Late Heavy Bombardment.
  D) They formed from hydrogen compounds expelled by the Jovian planets.

Question 2

The extrasolar planets are found mainly by observing the ________ shifts of their stars.
 
  Fill in the blank(s) with correct word


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adammoses97

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

A

Answer to Question 2

Doppler


penza

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xthemafja

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Reply 3 on: Yesterday
Excellent

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