List the properties of solids.

Rigid bodies are characterized by: elasticity, ductility and fragility.
Elasticity – the property of the body to return to its original position after the cessation of the action of physical force from the outside. Examples include rubber.
Plasticity – a property that consists in fixing the acquired form after stopping or cessation of external exposure. This property does not restore its shape. Examples: clay, clay.
Fragility – the property of the body to collapse under small deformations. Examples: glass, porcelain.

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