Which of the following statements accurately describe a general distinction between the terrestrial planets (Mercury, Venus, Earth, Mars) to the jovian planets (Jupiter, Saturn, Uranus, Neptune)?
a. The jovian planets are much more massive.
b. The terrestrial planets have a much greater average density.
c. The terrestrial planets are rocky, and the jovian planets are composed of hydrogen, helium and hydrogen compounds.
d. All of the above.
Answer: d. All of the above.
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