In this solar system there are four, Mercury, Venus, Earth, and Mars.
By "accretion" of "planetesimals" from the "protoplanetary disk".
Objects smaller than planets and dwarf planets, which are not moons, are called asteroids.The smallest are called meteoroids, especially when they encounter a larger body, and micrometeoroids if they are as small as grains of sand or dust, or even smaller.(because of their low mass, micrometeors can survive atmospheric deceleration to reach the surface)
The cores of jovian planets are very similar to terrestrial ones. Jovian planets are simply a more evolved form of terrestrial planet contrary to popular perception. Jovian planets often have a lot of hydrogen, helium, methane, and/or volatile ices to make up its atmosphere to the point where oceans of these components cover the terrestrial core and billow the atmosphere to large proportions. Terrestrial planets absorbed less of these components from the leftover solar nebula leaving only the rocky surface and maybe some gas of an atmosphere.
Rocky jr.
rocky IV ;)
They all have a solid, rocky surface.
they are called terrestrial planets. for example: Mars (The Red Giant)
Rocky planets, also known as terrestrial planets, are planets that are primarily composed of rock and metal. They have solid surfaces and relatively high densities compared to gas giants. The four rocky planets in our solar system are Mercury, Venus, Earth, and Mars.
Inner planets are also known as Terrestial planets which means they all have a rocky surface.
Jupiter and Saturn are gas giants, not rocky planets. They are primarily made up of gases like hydrogen and helium and do not have a solid surface like rocky planets such as Earth.
Depth of the atmosphere. Gas planets have the thickest and largest of atmospheres. Below gas planets atmospheres are pools of hydrogen or in some cases volatile ices that form in a giant ocean above the surface. It's estimated that Jupiter's rocky surface is only about the size of three Earths but the bloated atmosphere makes for most of the planet.
The inner planets are small and rocky, the outer planets are much larger and have no solid surface, they are called the gas giants.
Mars,venus,mercury
Rocky planets
The inner planets, except earth, are made up of rocks. They have a hard surface. The earth would be one of these except we have water. The outer planets are gas giants and do not have a solid surface.
The surfaces of inner planets like Mercury, Venus, Earth, and Mars vary. Mercury has a heavily cratered surface with plains and cliffs. Venus has a rocky, volcanic surface with vast plains and mountains. Earth has a diverse surface with oceans, continents, mountains, and deserts. Mars has a rocky, dusty surface with volcanoes, canyons, and polar ice caps.
The inner planets are primarily composed of rock and metal. Mercury is made up mostly of metal and rock, Venus has a thick rocky crust, Earth has a diverse composition with a metallic core, rocky mantle, and solid surface, while Mars has a rocky surface with iron-rich soil.