Question

​why do amorphous solids flow

Answer 1

An amorphorus solid is a liquid that does not flow:its atomic structure is disordered like that of a liquid but it is rigid and holds its shape like a solid.They include silica glass

Answer 2

Scientists have provided the first proof that amorphous materials, also known as soft glasses, deform and flow through a collective movement of their particles. ... An amorphous solid is a liquid that does not flow: its atomic structure is disordered like that of a liquid but it is rigid and holds its shape like a solid.