I don't know u tell mi
they are the same
they are both planets and they both have gases
Earth orbits the sun - all the other planets do as well.
They are both "rocky" planets and orbit closer to the Sun than the Earth.
Both are planets.
There are 3 similarities-here they are: .They are both planets .They are both in orbit .They are both in the atmosphere
nothing The most obvious similarities between Mercury and Neptune are they both are considered planets (unlike Pluto, which is considered today a dwarf planet) and both orbit around the Sun.
They both have cores, they both can get to -300F at night, they both orbit around the sun, and they're both planets. -Bluestar127
they all are a part of the solar system
wajnaa she is stupid ahahahahahahahahaha
what are the similarities between basketball and ring-ball
Earth and Neptune are very different, but share a few similarities. Both orbit the Sun in the same direction. both are a round shape and rotate on their axis. Both planets appear to be blue when viewed from a distance.