Neptune is a freezing gas giant with no solid surface and very little sunlight. Mars, Mercury and Venus are hot or warm planets with rocky surfaces and plenty of sunlight.
Earth > Venus > Mercury > Mars
Mars, Mercury, and i think that's it.
The order of Mercury ,Venus and Mars by size is: Mercury ,Mars and Venus
Mercury is closer to the sun than mars
Mercury
Mercury is the first planet from the sun, Mars is the fourth.
Mercury, Venus, Earth and Mars
Mars is only about a third larger than Mercury, having 1.34 times the surface area of Mercury. Mars-6,788 km Mercury-4,880 km
Mars
Mars diameter is 6792 km, while Mercurys diameter is 4879 km, so Mars is bigger. Mercury is the smallest of the eight planets, Mars is the second smallest after Mercury.
Mars.