Give an example of a material that exhibits inelastic deformation and explain why it behaves this way.

An example of a material that exhibits inelastic deformation is clay. When clay is shaped or compressed, it does not return to its original form because the internal structure of the material is permanently altered by the applied force.

This answer provides a specific example of inelastic deformation and explains the underlying reason for this behavior, demonstrating a deeper understanding of material properties. The question assesses the student's ability to apply knowledge to real-world materials.