Molton rock known as mantle magma, for the most part. There is also an iron core, the inner portion of which is probably solid.
The mantle.
30% land/mountains, 70% water.
It's the mantel.
763.59 Earths can be contained in Saturn (by volume)
Mercury's volume is equivalent to 0.056 x Earths Venus' volume = 0.857 x Earths (Earth) volume = 1 x Earths Mars' volume = 0.151 x Earths Jupiter's volume = 1321.3 x Earths Saturn's volume = 763.59 x Earths Uranus' volume = 63.086 x Earths Neptune's volume = 57.74 x Earths
Mercury's mass = 0.055 x Earths, Volume = 0.056 x Earths Mars' mass = 0.1075 x Earths, Volume = 0.151 x Earths Venus' mass = 0.815 x Earths, Volume = 0.857 x Earths (Earth) mass = 1 x Earths, Volume = 1 x Earths Uranus' mass = 14.536 x Earths, Volume = 63.086 x Earths Neptune's mass = 17.147 x Earths, Volume = 57.74 x Earths Saturn's mass = 95.152 x Earths, Volume = 763.59 x Earths Jupiter's mass = 317.8 x Earths, Volume = 1321.3 x Earths
Mercury's volume = 0.056 x Earths (6.08x1010 km3) Venus' volume = 0.857 x Earths (9.38x1011 km3) (Earth) volume = 1 x Earths (1.08x1012 km3) Mars' volume = 0.151 x Earths (1.63x1011 km3) Jupiter's volume = 1321.3 x Earths (1.43x1015 km3) Saturn's volume = 763.59 x Earths (8.2713x1014 km3) Uranus' volume = 63.086 x Earths (6.833x1013 km3) Neptune's volume = 57.74 x Earths (6.254x1013 km3)
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
Mercury (smallest), Mars, Venus, Earth, Neptune, Uranus, Saturn and Jupiter (largest). Note that although Neptune has more mass than Uranus, it is smaller in size. Mercury's volume = 0.056 x Earths Mars' volume = 0.151 x Earths Venus' volume = 0.857 x Earths (Earth) volume = 1 x Earths Neptune's volume = 57.74 x Earths Uranus' volume = 63.086 x Earths Saturn's volume = 763.59 x Earths Jupiter's volume = 1321.3 x Earths
In terms of Radius and diameter; Mercury's radius and diameter (at the equator) = 0.3825 x that of Earths (or 38.25%) Venus's radius and diameter = 0.9488 x Earths (nearly 95%) (Earth's radius = 6378km, diameter = 12756km) Mars = 0.5323 x Earths (53.2%) Jupiter = 11.21 x Earths Saturn = 9.45 x Earths Uranus = 4.01 x Earths Neptune = 3.88 x Earths In terms of Volume; Mercury's volume = 0.056 x Earths (or 5.6% of Earths) Venus' volume = 0.857 x Earths (85.7%) (Earths volume = 1.08 x 1012 cubic km (km3)) Mars' volume = 0.151 x Earths (15.1%) Jupiter's volume = 1321.3 x Earths Saturn's volume = 763.59 x Earths Uranus' volume = 63.086 x Earths Neptune's volume = 57.74 x Earths
The core is 33% of the Earths mass
Nitrogen