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Author Question: What are thought to be some possible causes of triggering the contraction of an interstellar cloud? ... (Read 15 times)

jman1234

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on: Jul 27, 2018
What are thought to be some possible causes of triggering the contraction of an interstellar cloud?
 
  What will be an ideal response?

Question 2

According to the nebular theory, what are asteroids and comets?
 
  A) They are the shattered remains of collisions between planets.
  B) They are the shattered remains of collisions between moons.
  C) They are leftover planetesimals that never accreted into planets.
  D) They are chunks of rock or ice that condensed long after the planets and moons had formed.
  E) They are chunks of rock or ice that were expelled from planets by volcanoes.


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owenfalvey

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

The shockwave from the formation of nearby type O and B stars, the shockwave from a nearby supernova, or parts of the cloud become too cold to balance the inward force of gravity.

Answer to Question 2

C


jman1234

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Reply 2 on: Jul 27, 2018
Gracias!

brbarasa

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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