Which of the following is not one of the inner four planets?
The inner four planets are:
1) Mercury,
2) Venus,
3) Earth,
4) Mars,
Jupiter is planet #5 and one of the outer 4 giant planets.
Planet #6) Saturn,
7) Uranus
and 8) Neptune. Pluto used to be planet #9 but has been downgraded to a dwarf planet.
More Info:
nineplanets.org