Ключевые слова: 3d, background, center, cleaving, composition, core, country, cross, crust, detail, earth, education, environment, geography, geologic, geology, globe, heat, hot, illustration, inner, inside, interior, internal, iron, lava, layer, lithosphere, magma, mantle, map, model, molten, nature, nucleus, outer, part, planet, research, schematic, science, section, solid, space, sphere, structure, study, temperature, volcanic,