Which of the Following Statements Concerning the Formation of the Solar

Multiple Choice

Which of the following statements concerning the formation of the solar system is NOT true?

A) The four inner planets are warmer and have a higher density than the outer planets.
B) Vaporized lighter gases from inner planets were swept by solar winds to the outer planets.
C) The outer planets are composed mostly of hydrogen, helium, methane, and ammonia.
D) The four inner planets consist mainly of iron, nickel, and silicate minerals.