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Author Question: The polarization of light passing though the dust grains shows that: A) the dust grains are ... (Read 187 times)

Bernana

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on: Jul 27, 2018
The polarization of light passing though the dust grains shows that:
 
  A) the dust grains are elongated in shape.
  B) the dust grains are aligned by a weak interstellar magnetic field.
  C) the dust grains are chiefly made of iron.
  D) Both A and B are correct.
  E) All of the above are correct.

Question 2

Compare and contrast the interiors of the Moon and Mercury, including how these features formed.
 
  What will be an ideal response?


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s.meritte

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

D

Answer to Question 2

Both have solid inner cores and outer fluid cores. The Moon has less iron, probably due to the source of its material being primarily the Earth's crust. Mercury's core is very large due to the temperature of that part of the solar system when Mercury formed. The process of differentiation led to the higher density material sinking to the center of these bodies.


Bernana

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Reply #2 on: Jul 27, 2018
Thank you!


s.meritte

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Reply #3 on: Jul 27, 2018
Always glad to help...


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