Inner part of planet contains molten magma or core. Its hot due to intense pressure.
Earth, Venus, and Mercury are also inner planets.
Mercury, Venus, Earth, and Mars are called the inner planets.
how is earth different from the othetr inner planets
No Earth isn't the biggest inner planet. Venus is. Even though it is hotter it is bigger than all of the other inner planets.
Differentiation occurred in other inner planets, besides Earth.
In a word : "water".
Yes.
Earth seems to be the correct size to enable a slowly cooling environment for the interior of the planet. Smaller planets cool much more quickly. Earth's solid inner core is gradually growing larger, however, and will someday completely solidify.
Mercury, Venus, Earth, and Mars are the first four inner planets. The asteroid belt is what separates the inner and outer planets from each other. There are thousands of asteroids in the asteroid belt.
The inner and outer planets are broken up by the asteroid belt between Mars and Jupiter. Mercury, Venus, Earth, and Mars are "inner planets" because they are on the side of the asteroid belt closest to the sun. All other planets are considered "outer planets".
The planets are either inner or outer planets. There are 8 planets. And of those eight planets: Mercury, Venus, Earth, and Mars are the inner planets. While: Jupiter, Saturn, Uranus, and Neptune are the outer planets.
Earth seems to be the correct size to enable a slowly cooling environment for the interior of the planet. Smaller planets cool much more quickly. Earth's solid inner core is gradually growing larger, however, and will someday completely solidify.