Author Question: Which of the following must have occurred in order for the inner planets to grow? A) explosions ... (Read 23 times)

Chelseaamend

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Which of the following must have occurred in order for the inner planets to grow?
 
  A) explosions in the Sun
  B) solar wind blasted gases out of the nebula
  C) temperatures cooled throughout the nebula
  D) dust was delivered to the nebula by asteroids and meteors

Question 2

Why did the first planetesimals form at the outer edge of the nebular disk?
 
  A) The smaller particles were gathered at the outer edge.
  B) The heat of fusion was more favorable there.
  C) Cooler temperatures favored condensation there.
  D) The planetary accretion gravity spun the planetesimal particles to the outer edge.



laurnthompson

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Answer to Question 1

Answer: B

Answer to Question 2

Answer: C



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