The processes of giant-planet migration and the formation of the ...

[gbarreiro]

The processes of giant-planet migration and the formation of the Oort Cloud caused the Uranus to move both inward and outward in the solar system. Which motion was most important? Why?
 
  What will be an ideal response?

Question 2

What makes the subject of star formation so difficult and complex?
 
  A) It is so slow that no visible proof of it exists.
  B) Star formation is too expensive to study in detail.
  C) Stars live too long to be observed from birth to death.
  D) Clouds, fragments, protostars, stars, and nebulae all interact and influence each other.
  E) Shock waves disrupt the orderly evolution of stars.

[Briannahope]

Answer to Question 1

The giant-planet migration process was probably more significant in that it moved Uranus (as well as Neptune, Saturn, and Jupiter) significantly inward. The formation of the Oort Cloud caused Uranus to move just a few AU.

Answer to Question 2

C

[gbarreiro]

Thanks

[Briannahope]

Welcome