All inner planets have approximately the same type of structure: a central metallic core, mostly iron, with a surrounding silicate mantle.
The mantle is covered by the crust. The surface is part of the crust.
The surfaces are made of rocks.
In the case of the Earth, about 70 % of the surface is actually the water of the oceans.
Rock.
the inner planets have rocky surfaces
The inner planets' surface materials differ from the outer planets because the inner planets have rocky surfaces and the outer planets have gas surfaces.
They have rocky surfaces.
Inner planets are characterized by their proximity to the sun and their rocky composition. They are also known as terrestrial planets as they have solid surfaces and are made up of mostly rock and metal. Inner planets include Mercury, Venus, Earth, and Mars. They are generally smaller and have shorter orbital periods compared to outer planets.
Rock.
the inner planets have rocky surfaces
The inner planets' surface materials differ from the outer planets because the inner planets have rocky surfaces and the outer planets have gas surfaces.
yes
Yes. They are the terrestrial planets.
Rocky Surfaces
They have solid surfaces composed of rock.
The inner planets have rocky, hard surfaces, are small, and have a more presentage of containing metal objects.
There is no particular reason why the outer planets are gas and the inner planets are rock, but the outer planets have icy cores because they are all far away from the sun.
they are small and have rocky surfaces
They have rocky surfaces.
inner planets: Mercury, Venus, Earth, and Mars ---> rocky surfaces outer planets: Jupiter, Saturn, Uranus, and Neptune ---> gas planets