Answer Happy

How did the four rocky planets (Mercury, Venus, Mars, Earth) closest to the sun form? 4 O through the coalescence of stardust and rocks into progressively larger bodies like planetessimals, all beld together by gravity, ultimately growing into planets. O through the gradual erosion by solar winds of rocky material from larger planets like Jupiter and Saturn that coalesced to form the rocky planets O through the collison and break up of larger rocky planets that existed prior to the formation of Mercury, Venus, Mars, and Earth through nuclear reactions by radioactive elements like Uranium, which joined large amounts of rocky elements by nuclear fusion