A sphere, ellipsoid or toroid are examples of shapes with only one face. You cannot get fewer faces than that!
cone
The intersection of two or more solids can either be an empty set, a point (two cones "intersecting" apex-to-apex), a line (two cubes touching along one edge), a face (two cubes, face-to-face). If the solids are "filled", the overlapping intersection will be another solid. If they are hollow, it will be a closed three dimensional figure.
A regular triangular dipyramid. It is one of the 92 "Johnson solids". Those are the convex polyhedra whose faces are regular polygons, but do not belong to either of the two sets of highly symmetric polyhedra (the Platonic and the Archimedean), or to the perhaps less interesting two infinite families of prisms and antiprisms.
Gases are less dense than solids.
The vapour pressure of solids are far less than those of liquid because solids have fixed arrangement of molecules and between atom of solids their is strong intermolecular forces that held the molecules in place and the molecules of liquid have less intermolecular forces as compared to solids.
A cube and a dodecahedron.
your mum and your face
The two types of solids are amorphous and crystalline solid!
The two types of solids are amorphous and crystalline solid!
Cone
sphere
The two types of solids are amorphous and crystalline solid!