none. Mars Earth and Venus have relatively thick atmospheres. it was long assumed that Mercury did not have an atmosphere but a very thin atmosphere around the planet. Mercury's atmosphere is composed of: 42%O2 29%Na
22%H2
06%He 00.5%K
The planet Mercury has virtually no atmosphere.
mercury
Mercury.
The size, atmosphere, composition, and crust activity.
outer planets are gas giants whille inner planets are just rocky planets. that includes that outer planets have significant amount of mass than the inner planets
because inner planets are hot and outer planets are cold
The inner planets are small, the outer planets are huge in comparison.The inner planets have rocky surfaces, the outer planets are gas giants.All of the outer planets have rings. None of the inner planets does.All of the outer planets have several moons, some of them quite large.
the outer planets are gaseous and the inner planets are not
Thats easy mercury!
I have a study guide that gave this answer: All inner planets exhibit an iron-nickel core surrounded by silicate rocks.
The size, atmosphere, composition, and crust activity.
none of the inner planets
Inner planets. are inner & outer planets. are outer
The inner planets are Mercury, Venus, Earth, and Mars. They are "inner" because the are the first 4 planets from the Sun.
After the inner planets you get the outer planets.
Inner planets
the inner planets are sometimes called Terrestrial Planets
Inner planets are terrestrial planets outer are jovian planets
the inner planets
I hesitate to admit that I was raised on one of the inner planets. The inner planets are not gaseous, like the outer planets.