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Author Question: In what sense is our unique Earth just ordinary from a cosmic perspective? What will be an ideal ... (Read 38 times)

mmm

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on: Jul 27, 2018
In what sense is our unique Earth just ordinary from a cosmic perspective?
 
  What will be an ideal response?

Question 2

When spiral galaxies do collide, the impact is greatest on their:
 
  A) individual stars.
  B) galactic nuclei.
  C) giant molecular clouds.
  D) open clusters.
  E) globular clusters.


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alvinum

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

We are not in the center of our solar system, which is not in the center of the Milky Way, which is just one of billions of known galaxies in the universe. Our planet is made of common minerals that are abundant throughout the known universe, and are probably part of almost any planet forming around any other star now.

Answer to Question 2

C


mmm

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Reply 2 on: Jul 27, 2018
Excellent

FergA

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Reply 3 on: Yesterday
:D TYSM

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