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Author Question: What type of galaxy are the two Magellanic Clouds? How do we know this visually? What will be an ... (Read 76 times)

clmills979

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on: Jul 27, 2018
What type of galaxy are the two Magellanic Clouds? How do we know this visually?
 
  What will be an ideal response?

Question 2

The terrestrial planet cores contain mostly metal because
 
  A) the entire planets are made mostly of metal.
  B) metals condensed first in the solar nebula and the rocks then accreted around them.
  C) metals sank to the center during a time when the interiors were molten throughout.
  D) radioactivity created metals in the core from the decay of uranium.
  E) convection carried the metals to the core.


cat123

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

Both are irregular galaxies, without the structure of either spirals or ellipticals, but with much visible gas and dust and new star formation typical of spiral arms.

Answer to Question 2

C


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