neptune.
Mars.
Pluto.
Because Pluto is a dwarf planet and is at the end of the solar system it takes longer for the dwarf planet to orbit round the sun.One Pluto year is 248 years.so two years is... 496 years
Saturn takes 29.66 years to orbit the sun.
URANUSUranus
the planet takes almost 2 earth years to orbit the sun is Jupiter
Mars. The further out from the sun, the longer a planet takes to revolve round the sun. For example, Pluto's orbit takes over 200 (Earth) years.
The planet Mars, which is the fourth planet from the sun, takes 1.88 Earth years to make one full orbit around the sun.
The planet with the nearest orbital time is Uranus. That takes about 84 Earth years.
Neptune does and it takes 164.8 years to do so.
It is Neptune.
Neptune
The dwarf Planet Pluto
If it takes as long as that it must be an outer planet.
Mars.
jupiter
Pluto.